Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

APPROVED VENDOR Incandescent Bulb: Incandescent, Miniature Bayonet (BA9s), (G) Globe, G4-1/2 - BA9s Single-Contact Miniature Bayonet Base Lamps
APPROVED VENDORBA9s Single-Contact Miniature Bayonet Base Lamps

APPROVED VENDOR Incandescent Bulb: Incandescent, Miniature Bayonet (BA9s), (G) Globe, G4-1/2

The APPROVED VENDOR Incandescent Bulb is a BA9s single-contact miniature bayonet base lamp with a G4-1/2 globe shape. It operates at 14V AC, produces white light, and carries Trade Number 57 (MPN 57-1PK).

SKU 3G-OTH-385296

Brand
APPROVED VENDOR
Item
Incandescent Bulb: Incandescent, Miniature Bayonet
Category
BA9s Single-Contact Miniature Bayonet Base Lamps
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
57-1PK
Type
Miniature Bayonet (BA9s), (G) Globe, G4-1/2, 57
Voltage
14V AC
Bulb Shape
G4-1/2
Light Color
White
Trade Number
57
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

APPROVED VENDOR Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The APPROVED VENDOR Incandescent Bulb is a BA9s single-contact miniature bayonet base lamp with a G4-1/2 globe shape. It operates at 14V AC, produces white light, and carries Trade Number 57 (MPN 57-1PK).

Frequently Asked Questions

What is the APPROVED VENDOR 57-1PK incandescent bulb used for?

This BA9s miniature bayonet base lamp with a G4-1/2 globe shape is used for indicator and pilot lighting in industrial control panels, instrumentation, and machinery. It operates at 14V AC and produces white light, making it suitable for status indication in electrical enclosures and equipment.

What are the specifications of the APPROVED VENDOR 57-1PK bulb?

The APPROVED VENDOR 57-1PK is a BA9s single-contact miniature bayonet base incandescent bulb. It has a G4-1/2 globe shape, operates at 14V AC, produces white light, and carries Trade Number 57. The bulb shape is G4-1/2, and the manufacturer part number is 57-1PK.

Where to buy the APPROVED VENDOR 57-1PK bulb worldwide?

3G Electric supplies the APPROVED VENDOR 57-1PK incandescent bulb to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this BA9s miniature bayonet lamp for your application.

How to select the correct BA9s miniature bayonet bulb for my panel?

To select the correct BA9s bulb, match the base type (single-contact miniature bayonet), voltage (14V AC for this APPROVED VENDOR 57-1PK), and bulb shape (G4-1/2 globe). Verify the Trade Number (57) and ensure the lamp fits your indicator socket. For assistance, consult 3G Electric's technical team.

Used in

Common applications for APPROVED VENDOR
Laboratory sampling — APPROVED VENDOR clear wide mouth glass bottles for collecting and storing liquid samples in non-sterile environments.
Steam heating maintenance — APPROVED VENDOR forged brass radiator valves for regulating steam flow in commercial building heating systems.
High-pressure cleaning — APPROVED VENDOR turbo spray nozzles for pressure washers used in industrial equipment cleaning up to 6,000 psi.
Cleanroom operations — APPROVED VENDOR vinyl task chairs for seating in ISO 5 classified manufacturing or assembly areas.
General sealing — APPROVED VENDOR natural rubber stoppers for closing laboratory flasks or test tubes in educational or research settings.
Tamper-evident security — APPROVED VENDOR brass lead and wire seals for securing utility meters, cargo containers, or access panels.

APPROVED VENDOR Products

3G Electric supplies APPROVED VENDOR ba9s single-contact miniature bayonet base lamps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Similar products

Matched by specification & description
APPROVED VENDOR Incandescent Bulb: Incandescent, Miniature Bayonet (BA9s), (G) Globe, G3-1/2, 53 (MPN 53-1PK). Key specifications — Light Color: White; Trade Number: 53; Voltage: 14.4V AC; Brand: APPROVED VENDOR; Bulb Shape: G3-1/2.
APPROVED VENDOR
APPROVED VENDOR Incandescent Bulb: Incandescent, Miniature Bayonet (BA9s), (G) Globe, G3-1/2, 53 (MPN 53-1PK). Key specifications — Light Color: White; Trade Number: 53; Voltage: 14.4V AC; Brand: APPROVED VENDOR; Bulb Shape: G3-1/2.
APPROVED VENDOR Incandescent Bulb: Incandescent, Miniature Bayonet (BA9s), (G) Globe, G4-1/2, 456 (MPN 456-1PK). Key specifications — Light Color: White; Trade Number: 456; Voltage: 28V AC; Brand: APPROVED VENDOR; Bulb Shape: G4-1/2.
APPROVED VENDOR
APPROVED VENDOR Incandescent Bulb: Incandescent, Miniature Bayonet (BA9s), (G) Globe, G4-1/2, 456 (MPN 456-1PK). Key specifications — Light Color: White; Trade Number: 456; Voltage: 28V AC; Brand: APPROVED VENDOR; Bulb Shape: G4-1/2.
APPROVED VENDOR Incandescent Bulb: Incandescent, Miniature Bayonet (BA9s), (G) Globe, G3-1/2, 1445 (MPN 1445-2PK). Key specifications — Light Color: White; Trade Number: 1445; Voltage: 14.4V AC; Brand: APPROVED VENDOR; Bulb Shape: G3-1/2.
APPROVED VENDOR
APPROVED VENDOR Incandescent Bulb: Incandescent, Miniature Bayonet (BA9s), (G) Globe, G3-1/2, 1445 (MPN 1445-2PK). Key specifications — Light Color: White; Trade Number: 1445; Voltage: 14.4V AC; Brand: APPROVED VENDOR; Bulb Shape: G3-1/2.
APPROVED VENDOR Incandescent Bulb: Incandescent, Miniature Bayonet (BA9s), (G) Globe, G3-1/2, 1450 (MPN 1450-1PK). Key specifications — Light Color: White; Trade Number: 1450; Voltage: 24V AC; Brand: APPROVED VENDOR; Bulb Shape: G3-1/2.
APPROVED VENDOR
APPROVED VENDOR Incandescent Bulb: Incandescent, Miniature Bayonet (BA9s), (G) Globe, G3-1/2, 1450 (MPN 1450-1PK). Key specifications — Light Color: White; Trade Number: 1450; Voltage: 24V AC; Brand: APPROVED VENDOR; Bulb Shape: G3-1/2.
APPROVED VENDOR Incandescent Bulb: Incandescent, Miniature Bayonet (BA9s), (G) Globe, G4-1/2, 57 (MPN 57-10PK). Key specifications — Light Color: White; Trade Number: 57; Voltage: 14V AC; Brand: APPROVED VENDOR; Bulb Shape: G4-1/2.
APPROVED VENDOR
APPROVED VENDOR Incandescent Bulb: Incandescent, Miniature Bayonet (BA9s), (G) Globe, G4-1/2, 57 (MPN 57-10PK). Key specifications — Light Color: White; Trade Number: 57; Voltage: 14V AC; Brand: APPROVED VENDOR; Bulb Shape: G4-1/2.
APPROVED VENDOR Incandescent Bulb: Incandescent, Miniature Bayonet (BA9s), (G) Globe, G3-1/2, 265 (MPN 265-1PK). Key specifications — Light Color: White; Trade Number: 265; Voltage: 28V AC; Brand: APPROVED VENDOR; Bulb Shape: G3-1/2.
APPROVED VENDOR
APPROVED VENDOR Incandescent Bulb: Incandescent, Miniature Bayonet (BA9s), (G) Globe, G3-1/2, 265 (MPN 265-1PK). Key specifications — Light Color: White; Trade Number: 265; Voltage: 28V AC; Brand: APPROVED VENDOR; Bulb Shape: G3-1/2.

More from APPROVED VENDOR

View all APPROVED VENDOR parts
APPROVED VENDOR Compact LED Bulb: LED, Miniature Bayonet (BA9s), (T) Tubular, T3-1/4, 24V AC/DC (MPN L24V-MB-A). Key specifications — Light Color: Amber; Voltage: 24V AC/DC; Brand: APPROVED VENDOR; Bulb Shape: T3-1/4.
APPROVED VENDOR
APPROVED VENDOR Compact LED Bulb: LED, Miniature Bayonet (BA9s), (T) Tubular, T3-1/4, 24V AC/DC (MPN L24V-MB-A). Key specifications — Light Color: Amber; Voltage: 24V AC/DC; Brand: APPROVED VENDOR; Bulb Shape: T3-1/4.
APPROVED VENDOR Compact LED Bulb: LED, Miniature Bayonet (BA9s), (T) Tubular, T3-1/4, 12V DC, White (MPN LM1012MB-WW). Key specifications — Light Color: White; Trade Number: 53, 57, 182, 293, 756, 1445, 1488, 1815, 1816, 1889, 1891, 1893, 1895; Voltage: 12V DC; Brand: APPROVED VENDOR; Bulb Shape: T3-1/4.
APPROVED VENDOR
APPROVED VENDOR Compact LED Bulb: LED, Miniature Bayonet (BA9s), (T) Tubular, T3-1/4, 12V DC, White (MPN LM1012MB-WW). Key specifications — Light Color: White; Trade Number: 53, 57, 182, 293, 756, 1445, 1488, 1815, 1816, 1889, 1891, 1893, 1895; Voltage: 12V DC; Brand: APPROVED VENDOR; Bulb Shape: T3-1/4.
APPROVED VENDOR Compact LED Bulb: LED, Miniature Bayonet (BA9s), (T) Tubular, T3-1/4, 160V AC, White (MPN LM10160MB-WW). Key specifications — Light Color: White; Voltage: 160V AC; Brand: APPROVED VENDOR; Bulb Shape: T3-1/4.
APPROVED VENDOR
APPROVED VENDOR Compact LED Bulb: LED, Miniature Bayonet (BA9s), (T) Tubular, T3-1/4, 160V AC, White (MPN LM10160MB-WW). Key specifications — Light Color: White; Voltage: 160V AC; Brand: APPROVED VENDOR; Bulb Shape: T3-1/4.
APPROVED VENDOR Incandescent Bulb: Incandescent, Miniature Bayonet (BA9s), (T) Tubular, T3-1/4, 44 (MPN 21U517). Key specifications — Light Color: White; Trade Number: 44; Voltage: 6.3V AC; Brand: APPROVED VENDOR; Bulb Shape: T3-1/4.
APPROVED VENDOR
APPROVED VENDOR Incandescent Bulb: Incandescent, Miniature Bayonet (BA9s), (T) Tubular, T3-1/4, 44 (MPN 21U517). Key specifications — Light Color: White; Trade Number: 44; Voltage: 6.3V AC; Brand: APPROVED VENDOR; Bulb Shape: T3-1/4.
APPROVED VENDOR Compact LED Bulb: LED, Miniature Bayonet (BA9s), (T) Tubular, T3-1/4, 6.3V DC, Amber (MPN LM1006MB-A). Key specifications — Light Color: Amber; Trade Number: 51,55,44,47,239,755,1406,1847,1850,1866,1810,1888; Voltage: 6.3V DC; Brand: APPROVED VENDOR; Bulb Shape: T3-1/4.
APPROVED VENDOR
APPROVED VENDOR Compact LED Bulb: LED, Miniature Bayonet (BA9s), (T) Tubular, T3-1/4, 6.3V DC, Amber (MPN LM1006MB-A). Key specifications — Light Color: Amber; Trade Number: 51,55,44,47,239,755,1406,1847,1850,1866,1810,1888; Voltage: 6.3V DC; Brand: APPROVED VENDOR; Bulb Shape: T3-1/4.
APPROVED VENDOR Compact LED Bulb: LED, Miniature Bayonet (BA9s), (T) Tubular, T3-1/4, 6V AC/DC (MPN L1006MB-WW). Key specifications — Light Color: White; Trade Number: 51,55,44,47,239,755,1406,1847,1850,1866,1810,1888; Voltage: 6V AC/DC; Brand: APPROVED VENDOR; Bulb Shape: T3-1/4.
APPROVED VENDOR
APPROVED VENDOR Compact LED Bulb: LED, Miniature Bayonet (BA9s), (T) Tubular, T3-1/4, 6V AC/DC (MPN L1006MB-WW). Key specifications — Light Color: White; Trade Number: 51,55,44,47,239,755,1406,1847,1850,1866,1810,1888; Voltage: 6V AC/DC; Brand: APPROVED VENDOR; Bulb Shape: T3-1/4.
APPROVED VENDOR Incandescent Bulb: Incandescent, Miniature Bayonet (BA9s), (T) Tubular, T3-1/4, 1819 (MPN 1819-1PK). Key specifications — Light Color: White; Trade Number: 1819; Voltage: 28V AC; Brand: APPROVED VENDOR; Bulb Shape: T3-1/4.
APPROVED VENDOR
APPROVED VENDOR Incandescent Bulb: Incandescent, Miniature Bayonet (BA9s), (T) Tubular, T3-1/4, 1819 (MPN 1819-1PK). Key specifications — Light Color: White; Trade Number: 1819; Voltage: 28V AC; Brand: APPROVED VENDOR; Bulb Shape: T3-1/4.
APPROVED VENDOR Compact LED Bulb: LED, Miniature Bayonet (BA9s), (T) Tubular, T3-1/4, 6.3V DC, Blue (MPN LM1006MB-B). Key specifications — Light Color: Blue; Trade Number: 51,55,44,47,239,755,1406,1847,1850,1866,1810,1888; Voltage: 6.3V DC; Brand: APPROVED VENDOR; Bulb Shape: T3-1/4.
APPROVED VENDOR
APPROVED VENDOR Compact LED Bulb: LED, Miniature Bayonet (BA9s), (T) Tubular, T3-1/4, 6.3V DC, Blue (MPN LM1006MB-B). Key specifications — Light Color: Blue; Trade Number: 51,55,44,47,239,755,1406,1847,1850,1866,1810,1888; Voltage: 6.3V DC; Brand: APPROVED VENDOR; Bulb Shape: T3-1/4.