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Technical Data Sheet
PartsTable / COMPONENT / 642F3-8
642F3-8 ✓ 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 NIPPLE,TUBE is a the manufacturer industrial component. Key specifications include material: CHROMIUM ALLOY OVERALL, nut_style: TUBE COUPLING, flow_angle: 90.0 DEGREES, leg_length: 0.47 INCHES NOMINAL SECOND END IN, nut_height: 0.594 INCHES NOMINAL IN, seat_angle: 45.0 DEGREES FIRST END. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-949-8694, 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
642F3-8
NSN: 4730-00-949-8694
FSC: 4730
CAGE: 30327 — IMPERIAL (USA)
SPECIFICATIONS
materialCHROMIUM ALLOY OVERALL
nut_styleTUBE COUPLING
flow_angle90.0 DEGREES
leg_length0.47 INCHES NOMINAL SECOND END IN
nut_height0.594 INCHES NOMINAL IN
seat_angle45.0 DEGREES FIRST END
reducer_typeCONCENTRIC
thread_class2A ALL ENDS A
thread_seriesUNF
nominal_length1.170 INCHES SECOND END IN
connection_typeTHREADED EXTERNAL PIPE SECOND END
connection_stylePLAIN (PIPE) SECOND END
NSN4730-00-949-8694
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 642F3-8 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
A327Interchangeable
interchangeable cross-reference
interchangeable
DM-622Interchangeable
interchangeable cross-reference
interchangeable
CI-086Interchangeable
interchangeable cross-reference
interchangeable
971-4-12Interchangeable
interchangeable cross-reference
interchangeable
U2-6Interchangeable
interchangeable cross-reference
interchangeable
44267-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 642F3-8?
642F3-8 is a NIPPLE,TUBE.
What parts can replace 642F3-8?
There are 21 known substitutes for 642F3-8: A327, DM-622, CI-086 and 18 more. Substitute compatibility should be verified for your specific system.
Is 642F3-8 still available?
642F3-8 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