PartsTable / COMPONENT / 603 3/8
603 3/8
✓ 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 603 3/8 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-266-1813, 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
603 3/8
NSN: 4730-00-266-1813 FSC: 4730 CAGE: 12168 — NIBCO INC (USA)
SPECIFICATIONS
Part Number 603 3/8 NSN 4730-00-266-1813
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL
END A: —
STRAIGHT
END B: —
SPECIFICATIONS
Thread: —
Material: —
Pressure: —
PN: 603 3/8 · 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: 0.375 INCHES SECOND END IN
• CONNECTION STYLE: PLAIN (PIPE) SECOND END
• CONNECTION TYPE: THREADED INTERNAL PIPE SECOND END
• TUBING WALL NOMINAL THICKNESS FOR WHICH DESIGNED: 0.032 INCHES FIRST END IN
• THREAD SERIES DESIGNATOR: NPT SECOND END
• NOMINAL OVERALL LENGTH: 0.531 INCHES IN
• MATERIAL: COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE 0.375 INCHES SECOND END IN CONNECTION STYLE PLAIN (PIPE) SECOND END CONNECTION TYPE THREADED INTERNAL PIPE SECOND END TUBING WALL NOMINAL THICKNESS FOR WHICH DESIGNED 0.032 INCHES FIRST END IN CONNECTION TYPE UNTHREADED INTERNAL TUBE FIRST END THREAD SERIES DESIGNATOR NPT SECOND END NOMINAL OVERALL LENGTH 0.531 INCHES IN MATERIAL COPPER ALLOY OVERALL NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED 0.500 INCHES FIRST END IN CONNECTION STYLE SOCKET (TUBE) FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
60338 Interchangeable interchangeable cross-reference
interchangeable
120792H1 Interchangeable interchangeable cross-reference
interchangeable
1632451 Interchangeable interchangeable cross-reference
interchangeable
550 38 Interchangeable interchangeable cross-reference
interchangeable
818 38 Interchangeable interchangeable cross-reference
interchangeable
46708 Interchangeable interchangeable cross-reference
interchangeable
LIFECYCLE
Status CANCELLED
Availability —
RoHS Compliant EAR99 Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 603 3/8?
603 3/8 is a 603 3/8.
What parts can replace 603 3/8?
There are 12 known substitutes for 603 3/8: 60338, 120792H1, 1632451 and 9 more. Substitute compatibility should be verified for your specific system.
Is 603 3/8 still available?
603 3/8 is currently cancelled.
Request a Quote — 603 3/8