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

APPLETON ELECTRIC Straight Union - Conduit to Box, 5 in Trade Size, FNPT x MNPT
APPLETON ELECTRICStraight Union - Conduit to Box

APPLETON ELECTRIC Straight Union - Conduit to Box, 5 in Trade Size, FNPT x MNPT

The APPLETON ELECTRIC Straight Union - Conduit to Box (MPN UNY500R) is an iron fitting with a 5-inch trade size, featuring a female-to-male configuration. It has 5-inch FNPT x 5-inch MNPT ends for hazardous fittings…

SKU 3G-OTH-05170

Brand
APPLETON ELECTRIC
Item
Straight Union - Conduit to Box, 5 in Trade Size, FNPT x MNPT
Category
Straight Union - Conduit to Box
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
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

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

APPLETON ELECTRIC
Manufacturer Part Number
UNY500R
Finish
Electroplated
Ends - Hazardous Fittings
5 in FNPT x 5 in MNPT

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

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

Product Description

The APPLETON ELECTRIC Straight Union - Conduit to Box (MPN UNY500R) is an iron fitting with a 5-inch trade size, featuring a female-to-male configuration. It has 5-inch FNPT x 5-inch MNPT ends for hazardous fittings and an electroplated finish.

Frequently Asked Questions

What is the APPLETON ELECTRIC Straight Union - Conduit to Box used for?

This straight union connects conduit to an electrical box in hazardous environments. It is used in industrial facilities, oil and gas plants, and chemical processing where explosion-proof fittings are required. The 5-inch FNPT x 5-inch MNPT ends provide a secure, threaded connection.

What are the specifications of the APPLETON ELECTRIC UNY500R?

The UNY500R is a 5-inch trade size straight union with a female-to-male configuration. It has 5-inch FNPT x 5-inch MNPT ends for hazardous fittings, an electroplated iron finish, and is manufactured by APPLETON ELECTRIC. The part number is UNY500R.

Where to buy the APPLETON ELECTRIC UNY500R worldwide?

3G Electric supplies the APPLETON ELECTRIC UNY500R straight union to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time. We source and deliver this fitting globally.

How to install the APPLETON ELECTRIC straight union?

Apply thread sealant to the male NPT end and hand-tighten into the conduit hub or box. Use a wrench for final tightening, but avoid overtightening to prevent damage. Ensure the electroplated finish is clean and free of debris before assembly. Follow local electrical codes for hazardous locations.

Used in

Common applications for APPLETON ELECTRIC
Oil and gas refineries — Appleton Electric EDSC21MC2 manual motor switch for controlling pumps in Class I, Division 1 areas
Chemical processing plants — Appleton Electric AEAB13420C hazardous location circuit breaker for motor protection in volatile environments
Pharmaceutical manufacturing — Appleton Electric FSK-1VDR weatherproof cover for duplex receptacles in washdown zones
Wastewater treatment facilities — Appleton Electric UNY250R-A aluminum conduit union for corrosion-resistant connections
Mining operations — Appleton Electric EDSC277-SA tandem 2-gang box for junction points in hazardous dust locations
Food and beverage processing — Appleton Electric JBK-75 iron cover for conduit access fittings in wet or dusty areas

APPLETON ELECTRIC Products

3G Electric supplies APPLETON ELECTRIC straight union - conduit to box. 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

Compatible alternatives & equivalents

Cross-referenced by specification & description
Iron straight union for connecting conduit to a box, with 3-1/2 in FNPT female and 3-1/2 in MNPT male threaded ends. Chromate coated finish. Used in electrical conduit systems to transition from conduit to enclosure
APPLETON ELECTRIC
Iron straight union for connecting conduit to a box, with 3-1/2 in FNPT female and 3-1/2 in MNPT male threaded ends. Chromate coated finish. Used in electrical conduit systems to transition from conduit to enclosure
APPLETON ELECTRIC
APPLETON ELECTRIC
Iron straight union for connecting a conduit to a box, with 2-1/2 in female NPT and 2-1/2 in male NPT ends. Electroplated finish. Used in electrical raceway systems to join threaded conduit to enclosures
Iron straight union for connecting conduit to a box or enclosure. Features 1-1/2 in female NPT to 1-1/2 in male NPT threaded ends with a powder-coated finish. Used in industrial and hazardous environments to provide a secure transition between conduit and enclosures
APPLETON ELECTRIC
Iron straight union for connecting conduit to a box or enclosure. Features 1-1/2 in female NPT to 1-1/2 in male NPT threaded ends with a powder-coated finish. Used in industrial and hazardous environments to provide a secure transition between conduit and enclosures
Iron straight union for connecting conduit to electrical boxes. Features 2-inch female NPT to male NPT threaded ends. Powder-coated finish. Suitable for use in hazardous locations requiring explosion-proof or dust-ignition-proof installations
APPLETON ELECTRIC
Iron straight union for connecting conduit to electrical boxes. Features 2-inch female NPT to male NPT threaded ends. Powder-coated finish. Suitable for use in hazardous locations requiring explosion-proof or dust-ignition-proof installations
Iron straight union for connecting conduit to an electrical box. Features a 4-inch female NPT to 4-inch male NPT configuration with electroplated finish. Suitable for use in hazardous locations requiring secure conduit-to-box connections
APPLETON ELECTRIC
Iron straight union for connecting conduit to an electrical box. Features a 4-inch female NPT to 4-inch male NPT configuration with electroplated finish. Suitable for use in hazardous locations requiring secure conduit-to-box connections
APPLETON ELECTRIC
APPLETON ELECTRIC
Aluminum straight union with powder-coated finish. Provides a threaded transition from 1-1/2 in female NPT to 1-1/2 in male NPT for connecting conduit to boxes. Suitable for use in electrical conduit systems requiring a female-to-male adapter

More from APPLETON ELECTRIC

View all APPLETON ELECTRIC parts
Iron straight union for connecting conduit to an electrical box. Features 6-inch FNPT female and 6-inch MNPT male threaded ends. Electroplated finish. Trade size 6 inches
APPLETON ELECTRIC
Iron straight union for connecting conduit to an electrical box. Features 6-inch FNPT female and 6-inch MNPT male threaded ends. Electroplated finish. Trade size 6 inches
Aluminum straight union for connecting conduit to a box. Features a 3-1/2 in FNPT female end and a 3-1/2 in MNPT male end with threaded connections. Powder-coated finish provides corrosion resistance. Suitable for use in electrical conduit systems requiring a secure, sealed joint
APPLETON ELECTRIC
Aluminum straight union for connecting conduit to a box. Features a 3-1/2 in FNPT female end and a 3-1/2 in MNPT male end with threaded connections. Powder-coated finish provides corrosion resistance. Suitable for use in electrical conduit systems requiring a secure, sealed joint
Iron straight union for connecting conduit to a box in hazardous locations. Features a 3-inch female NPT to 3-inch male NPT configuration with a chromate-coated finish. Used in industrial electrical installations requiring threaded transitions
APPLETON ELECTRIC
Iron straight union for connecting conduit to a box in hazardous locations. Features a 3-inch female NPT to 3-inch male NPT configuration with a chromate-coated finish. Used in industrial electrical installations requiring threaded transitions
This straight union connects a conduit to a box, featuring a steel body with electroplated finish. It has 3/4 in FNPT and 3/4 in MNPT hazardous-fittings ends. Used in electrical systems for joining conduit to enclosures
APPLETON ELECTRIC
This straight union connects a conduit to a box, featuring a steel body with electroplated finish. It has 3/4 in FNPT and 3/4 in MNPT hazardous-fittings ends. Used in electrical systems for joining conduit to enclosures
Aluminum straight union for connecting conduit to a box. Features a 3 in FNPT female end and a 3 in MNPT male end, both threaded. Powder-coated finish. Suitable for use in hazardous locations
APPLETON ELECTRIC
Aluminum straight union for connecting conduit to a box. Features a 3 in FNPT female end and a 3 in MNPT male end, both threaded. Powder-coated finish. Suitable for use in hazardous locations
Aluminum straight union for connecting conduit to box in hazardous locations. Features 4-inch FNPT and 4-inch MNPT threaded ends, female to male, with powder-coated finish. Trade size 4 in
APPLETON ELECTRIC
Aluminum straight union for connecting conduit to box in hazardous locations. Features 4-inch FNPT and 4-inch MNPT threaded ends, female to male, with powder-coated finish. Trade size 4 in
Aluminum straight union for connecting conduit to a box. Features 3/4 in FNPT x 3/4 in MNPT threaded ends with a plain finish. Suitable for use in hazardous locations as a female-to-male threaded adapter
APPLETON ELECTRIC
Aluminum straight union for connecting conduit to a box. Features 3/4 in FNPT x 3/4 in MNPT threaded ends with a plain finish. Suitable for use in hazardous locations as a female-to-male threaded adapter
APPLETON ELECTRIC
APPLETON ELECTRIC
This straight union connects rigid conduit to a box, joining female NPT conduit threads to male NPT box entries. Constructed of iron with an electroplated finish, it is suitable for use in hazardous locations. Trade size 1-1/4 in