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Technical Data Sheet
PartsTable / COMPONENT / 3908-1 1-2IN
3908-1 1-2IN ✓ 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 CAP,HOSE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, thread_direction: RIGHT-HAND INTERNAL, features_provided: CHAIN, nominal_thread_size: 1.500 INCHES INTERNAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-419-0451, 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
3908-1 1-2IN
NSN: 4730-00-419-0451
FSC: 4730
CAGE: 63686 — THE WALWORTH COMPANY (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
thread_directionRIGHT-HAND INTERNAL
features_providedCHAIN
nominal_thread_size1.500 INCHES INTERNAL IN
NSN4730-00-419-0451
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3908-1 1-2IN · 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
•
MATERIAL: COPPER ALLOY OVERALL
•
THREAD DIRECTION: RIGHT-HAND INTERNAL
•
FEATURES PROVIDED: CHAIN
•
NOMINAL THREAD SIZE: 1.500 INCHES INTERNAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY OVERALL
THREAD DIRECTIONRIGHT-HAND INTERNAL
FEATURES PROVIDEDCHAIN
NOMINAL THREAD SIZE1.500 INCHES INTERNAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
311606Interchangeable
interchangeable cross-reference
interchangeable
279323R91Interchangeable
interchangeable cross-reference
interchangeable
6018Interchangeable
interchangeable cross-reference
interchangeable
H9118Interchangeable
interchangeable cross-reference
interchangeable
9118Interchangeable
interchangeable cross-reference
interchangeable
T0150-5-5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3908-1 1-2IN?
3908-1 1-2IN is a CAP,HOSE.
What parts can replace 3908-1 1-2IN?
There are 16 known substitutes for 3908-1 1-2IN: 311606, 279323R91, 6018 and 13 more. Substitute compatibility should be verified for your specific system.
Is 3908-1 1-2IN still available?
3908-1 1-2IN is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026