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

BERNARD Nozzle: Small Centerfire, 3/8 in, Tapered, Flush - Centerfire Series Nozzles
BERNARDCenterfire Series Nozzles

BERNARD Nozzle: Small Centerfire, 3/8 in, Tapered, Flush

The BERNARD Nozzle (MPN NST-3800B) is a Small Centerfire, 3/8 in, Tapered, Flush, Brass nozzle from the Centerfire Series. It is a Standard Duty, Self-Insulated nozzle with a Flush nozzle-to-tip relationship…

SKU 3G-OTH-355678

Brand
BERNARD
Item
Nozzle: Small Centerfire, 3/8 in, Tapered, Flush
Category
Centerfire Series Nozzles
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

BERNARD
Manufacturer Part Number
NST-3800B
Duty Rating
Standard Duty
Insulation Type
Self-Insulated
For Contact Tip Series
Centerfire
Nozzle to Tip Relationship
Flush
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

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

Product Description

The BERNARD Nozzle (MPN NST-3800B) is a Small Centerfire, 3/8 in, Tapered, Flush, Brass nozzle from the Centerfire Series. It is a Standard Duty, Self-Insulated nozzle with a Flush nozzle-to-tip relationship, designed for use with Centerfire contact tips.

Frequently Asked Questions

What is the BERNARD NST-3800B nozzle used for?

The BERNARD NST-3800B is a Small Centerfire nozzle used in MIG welding to direct shielding gas and protect the contact tip. Its 3/8 in tapered, flush design suits standard-duty applications, ensuring consistent gas coverage for quality welds across fabrication and repair industries.

What are the specifications of the BERNARD NST-3800B nozzle?

The BERNARD NST-3800B is a 3/8 in, tapered, flush brass nozzle from the Centerfire Series. It is self-insulated, standard duty, with a flush nozzle-to-tip relationship. It is designed for use with Centerfire contact tips and carries MPN NST-3800B.

Where to buy the BERNARD NST-3800B nozzle worldwide?

3G Electric supplies the BERNARD NST-3800B nozzle worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this genuine BERNARD Centerfire nozzle to your facility, regardless of location.

How to select the correct BERNARD Centerfire nozzle for my MIG gun?

To select the correct BERNARD Centerfire nozzle, match the nozzle size (3/8 in for NST-3800B) to your contact tip series and ensure the flush relationship fits your weld joint access. Verify duty rating and insulation type against your application's heat and spatter conditions for optimal performance.

Used in

Common applications for BERNARD
Heavy equipment fabrication — BERNARD Centerfire nozzles (NST-3800B) for consistent gas coverage on high-deposition welds.
Shipbuilding — BERNARD Quik Tip gas diffusers (D118Q) for recessed tip positioning to reduce spatter in tight joints.
Automotive manufacturing — BERNARD steel liners (L4A-25) for reliable wire feeding in robotic MIG welding cells.
Structural steel welding — BERNARD large Centerfire nozzles (N-5814C) for 5/8 in diameter applications requiring high heat input.
Maintenance and repair — BERNARD Centerfire gas diffusers (DS-1) for quick tip changes during multi-pass welding on carbon steel.
Pipe welding — BERNARD neck insulators (4523R) for thermal protection in small Centerfire nozzle assemblies.

BERNARD Products

3G Electric supplies BERNARD centerfire series nozzles. 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
BERNARD Nozzle: Small Centerfire, 5/8 in, Straight, 1/8 in Recess, Brass (MPN NS-5818B). Key specifications — Insulation Type: Self-Insulated; Duty Rating: Standard Duty; Nozzle to Tip Relationship: 1/8 in Recess; For Contact Tip Series: Centerfire; Manufacturer Part Number: NS-5818B; Brand: BERNARD.
BERNARD
BERNARD Nozzle: Small Centerfire, 5/8 in, Straight, 1/8 in Recess, Brass (MPN NS-5818B). Key specifications — Insulation Type: Self-Insulated; Duty Rating: Standard Duty; Nozzle to Tip Relationship: 1/8 in Recess; For Contact Tip Series: Centerfire; Manufacturer Part Number: NS-5818B; Brand: BERNARD.
BERNARD Nozzle: Small Centerfire, 3/8 in, Tapered, 1/8 in Recess, Brass (MPN NST-3818B). Key specifications — Insulation Type: Self-Insulated; Duty Rating: Standard Duty; Nozzle to Tip Relationship: 1/8 in Recess; For Contact Tip Series: Centerfire; Manufacturer Part Number: NST-3818B; Brand: BERNARD.
BERNARD
BERNARD Nozzle: Small Centerfire, 3/8 in, Tapered, 1/8 in Recess, Brass (MPN NST-3818B). Key specifications — Insulation Type: Self-Insulated; Duty Rating: Standard Duty; Nozzle to Tip Relationship: 1/8 in Recess; For Contact Tip Series: Centerfire; Manufacturer Part Number: NST-3818B; Brand: BERNARD.
BERNARD
BERNARD
BERNARD Nozzle: Small Centerfire, 5/8 in, Straight, Flush, Copper (MPN NS-5800C). Key specifications — Insulation Type: Self-Insulated; Duty Rating: Standard Duty; Nozzle to Tip Relationship: Flush; For Contact Tip Series: Centerfire; Manufacturer Part Number: NS-5800C; Brand: BERNARD.
BERNARD Nozzle: Large Centerfire, 3/4 in, Straight, 1/4 in Recess, Brass (MPN N-3414B). Key specifications — Insulation Type: Self-Insulated; Duty Rating: Heavy Duty; Nozzle to Tip Relationship: 1/4 in Recess; For Contact Tip Series: Centerfire; Manufacturer Part Number: N-3414B; Brand: BERNARD.
BERNARD
BERNARD Nozzle: Large Centerfire, 3/4 in, Straight, 1/4 in Recess, Brass (MPN N-3414B). Key specifications — Insulation Type: Self-Insulated; Duty Rating: Heavy Duty; Nozzle to Tip Relationship: 1/4 in Recess; For Contact Tip Series: Centerfire; Manufacturer Part Number: N-3414B; Brand: BERNARD.
BERNARD
BERNARD
BERNARD Nozzle: Large Centerfire, 5/8 in, Conical, 1/4 in Recess, Brass (MPN N-5814B). Key specifications — Insulation Type: Self-Insulated; Duty Rating: Heavy Duty; Nozzle to Tip Relationship: 1/4 in Recess; For Contact Tip Series: Centerfire; Manufacturer Part Number: N-5814B; Brand: BERNARD.
BERNARD
BERNARD
BERNARD Nozzle: Large Centerfire, 3/4 in, Straight, 1/4 in Recess, Copper (MPN N-3414C). Key specifications — Insulation Type: Self-Insulated; Duty Rating: Heavy Duty; Nozzle to Tip Relationship: 1/4 in Recess; For Contact Tip Series: Centerfire; Manufacturer Part Number: N-3414C; Brand: BERNARD.

More from BERNARD

View all BERNARD parts
BERNARD
BERNARD
BERNARD Nozzle: Large Centerfire, 3/4 in, Straight, 1/8 in Recess, Brass (MPN N-3418B). Key specifications — Insulation Type: Self-Insulated; Duty Rating: Heavy Duty; Nozzle to Tip Relationship: 1/8 in Recess; For Contact Tip Series: Centerfire; Manufacturer Part Number: N-3418B; Brand: BERNARD.
BERNARD Nozzle: Large Centerfire, 5/8 in, Conical, Flush, Copper (MPN N-5800C). Key specifications — Insulation Type: Self-Insulated; Duty Rating: Standard Duty; Nozzle to Tip Relationship: Flush; For Contact Tip Series: Centerfire; Manufacturer Part Number: N-5800C; Brand: BERNARD.
BERNARD
BERNARD Nozzle: Large Centerfire, 5/8 in, Conical, Flush, Copper (MPN N-5800C). Key specifications — Insulation Type: Self-Insulated; Duty Rating: Standard Duty; Nozzle to Tip Relationship: Flush; For Contact Tip Series: Centerfire; Manufacturer Part Number: N-5800C; Brand: BERNARD.
BERNARD
BERNARD
BERNARD Nozzle: Small Centerfire, 5/8 in, Straight, Flush, Brass (MPN NS-5800B). Key specifications — Insulation Type: Self-Insulated; Duty Rating: Standard Duty; Nozzle to Tip Relationship: Flush; For Contact Tip Series: Centerfire; Manufacturer Part Number: NS-5800B; Brand: BERNARD.
BERNARD
BERNARD
BERNARD Nozzle: Small Centerfire, 1/2 in, Conical, 1/8 in Recess, Copper (MPN NS-1218C). Key specifications — Insulation Type: Self-Insulated; Duty Rating: Standard Duty; Nozzle to Tip Relationship: 1/8 in Recess; For Contact Tip Series: Centerfire; Manufacturer Part Number: NS-1218C; Brand: BERNARD.
BERNARD Nozzle: Small Centerfire, 1/2 in, Conical, 1/8 in Recess, Brass (MPN NS-1218B). Key specifications — Insulation Type: Self-Insulated; Duty Rating: Standard Duty; Nozzle to Tip Relationship: 1/8 in Recess; For Contact Tip Series: Centerfire; Manufacturer Part Number: NS-1218B; Brand: BERNARD.
BERNARD
BERNARD Nozzle: Small Centerfire, 1/2 in, Conical, 1/8 in Recess, Brass (MPN NS-1218B). Key specifications — Insulation Type: Self-Insulated; Duty Rating: Standard Duty; Nozzle to Tip Relationship: 1/8 in Recess; For Contact Tip Series: Centerfire; Manufacturer Part Number: NS-1218B; Brand: BERNARD.
BERNARD Nozzle: Large Centerfire, 5/8 in, Conical, 1/4 in Recess, Copper (MPN N-5814C). Key specifications — Insulation Type: Self-Insulated; Duty Rating: Standard Duty; Nozzle to Tip Relationship: 1/4 in Recess; For Contact Tip Series: Centerfire; Manufacturer Part Number: N-5814C; Brand: BERNARD.
BERNARD
BERNARD Nozzle: Large Centerfire, 5/8 in, Conical, 1/4 in Recess, Copper (MPN N-5814C). Key specifications — Insulation Type: Self-Insulated; Duty Rating: Standard Duty; Nozzle to Tip Relationship: 1/4 in Recess; For Contact Tip Series: Centerfire; Manufacturer Part Number: N-5814C; Brand: BERNARD.
BERNARD Nozzle: Large Centerfire, 5/8 in, Conical, 1/8 in Recess, Brass (MPN N-5818B). Key specifications — Insulation Type: Self-Insulated; Duty Rating: Standard Duty; Nozzle to Tip Relationship: 1/8 in Recess; For Contact Tip Series: Centerfire; Manufacturer Part Number: N-5818B; Brand: BERNARD.
BERNARD
BERNARD Nozzle: Large Centerfire, 5/8 in, Conical, 1/8 in Recess, Brass (MPN N-5818B). Key specifications — Insulation Type: Self-Insulated; Duty Rating: Standard Duty; Nozzle to Tip Relationship: 1/8 in Recess; For Contact Tip Series: Centerfire; Manufacturer Part Number: N-5818B; Brand: BERNARD.
BERNARD Nozzle: Small Centerfire, 3/8 in, Tapered, 1/8 in Stickout, Brass (MPN NST-38XTB). Key specifications — Insulation Type: Self-Insulated; Duty Rating: Standard Duty; Nozzle to Tip Relationship: 1/8 in Stickout; For Contact Tip Series: Centerfire; Manufacturer Part Number: NST-38XTB; Brand: BERNARD.
BERNARD
BERNARD Nozzle: Small Centerfire, 3/8 in, Tapered, 1/8 in Stickout, Brass (MPN NST-38XTB). Key specifications — Insulation Type: Self-Insulated; Duty Rating: Standard Duty; Nozzle to Tip Relationship: 1/8 in Stickout; For Contact Tip Series: Centerfire; Manufacturer Part Number: NST-38XTB; Brand: BERNARD.