PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 604-1/2
604-1/2 ✓ 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 604-1/2 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 4730-00-843-7421, 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
604-1/2
NSN: 4730-00-843-7421
FSC: 4730
CAGE: 12168 — NIBCO INC (USA)
SPECIFICATIONS
Part Number604-1/2
NSN4730-00-843-7421
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 604-1/2 · 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
•
NOMINAL THREAD SIZE: 0.500 INCHES SECOND END IN
•
CONNECTION STYLE: PLAIN (PIPE) SECOND END
•
CONNECTION TYPE: UNTHREADED INTERNAL PIPE FIRST END
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.500 INCHES FIRST END IN
•
STYLE DESIGNATOR: GROOVED AND THREADED EXTERNAL
•
NOMINAL OVERALL LENGTH: 1.375 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.500 INCHES SECOND END IN
CONNECTION STYLEPLAIN (PIPE) SECOND END
CONNECTION TYPEUNTHREADED INTERNAL PIPE FIRST END
NOMINAL PIPE SIZE ACCOMMODATED0.500 INCHES FIRST END IN
STYLE DESIGNATORGROOVED AND THREADED EXTERNAL
CONNECTION STYLESOCKET (PIPE) FIRST END
NOMINAL OVERALL LENGTH1.375 INCHES IN
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
MATERIALCOPPER ALLOY OVERALL
THREAD SERIES DESIGNATORNPT SECOND END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
10051242Interchangeable
interchangeable cross-reference
interchangeable
5340PL1524834Interchangeable
interchangeable cross-reference
interchangeable
C2080338-1Interchangeable
interchangeable cross-reference
interchangeable
60-4-12Interchangeable
interchangeable cross-reference
interchangeable
FFB571ANDCLASSAInterchangeable
interchangeable cross-reference
interchangeable
639470-030Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 604-1/2?
604-1/2 is a 604-1/2.
What parts can replace 604-1/2?
There are 8 known substitutes for 604-1/2: 10051242, 5340PL1524834, C2080338-1 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 604-1/2?
604-1/2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-843-7421. 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