PartsTable
Technical Data Sheet
PartsTable / COMPONENT / COUPLER,RH ITEM
COUPLER,RH ITEM ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The COUPLER,RH ITEM is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-126-7917, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
COUPLER,RH ITEM
NSN: 4730-00-126-7917
FSC: 4730
CAGE: 16166 — WESTERN ENTERPRISES DIV OF SCOTT AND FETZER CO (USA)
SPECIFICATIONS
Part NumberCOUPLER,RH ITEM
NSN4730-00-126-7917
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: COUPLER,RH ITEM · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MEDIA FOR WHICH DESIGNED: FLUID FIRST RESPONSE
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.375 INCHES ALL ENDS IN
•
MATERIAL: COPPER ALLOY OR COPPER ALLOY 360 OVERALL
•
THREAD CLASS: 2A ALL ENDS A
•
THREAD SERIES DESIGNATOR: UNF ALL ENDS
•
STYLE DESIGNATOR: INVERTED FLARE W/ CENTER WRENCHING FACILITY
•
NOMINAL THREAD SIZE: 0.562 INCHES ALL ENDS IN
•
LEG LENGTH: 0.475 INCHES NOMINAL FIRST END IN
TECHNICAL CHARACTERISTICS (FLIS)
MEDIA FOR WHICH DESIGNEDFLUID FIRST RESPONSE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES ALL ENDS IN
MATERIALCOPPER ALLOY OR COPPER ALLOY 360 OVERALL
THREAD CLASS2A ALL ENDS A
THREAD SERIES DESIGNATORUNF ALL ENDS
STYLE DESIGNATORINVERTED FLARE W/ CENTER WRENCHING FACILITY
NOMINAL THREAD SIZE0.562 INCHES ALL ENDS IN
LEG LENGTH0.475 INCHES NOMINAL FIRST END IN
MEDIA FOR WHICH DESIGNEDGAS SECOND RESPONSE
NOMINAL OVERALL LENGTH1.258 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
0539-5Interchangeable
interchangeable cross-reference
interchangeable
039549Interchangeable
interchangeable cross-reference
interchangeable
10670724-2Interchangeable
interchangeable cross-reference
interchangeable
18653DInterchangeable
interchangeable cross-reference
interchangeable
T1712-1Interchangeable
interchangeable cross-reference
interchangeable
810 971Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is COUPLER,RH ITEM?
COUPLER,RH ITEM is a COUPLER,RH ITEM.
What parts can replace COUPLER,RH ITEM?
There are 15 known substitutes for COUPLER,RH ITEM: 0539-5, 039549, 10670724-2 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for COUPLER,RH ITEM?
COUPLER,RH ITEM is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-126-7917. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026