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Technical Data Sheet
PartsTable / COMPONENT / FC-3963
FC-3963 ✓ 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 TRANSFORMER,RADIO FREQUENCY is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, face_type: STRAIGHT, body_style: PLAIN, SOLID, body_width: 3.312 INCHES NOMINAL IN, bore_style: PLAIN BOTH ENDS, body_height: 3.750 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-431-2970, 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
FC-3963
NSN: 4730-00-431-2970
FSC: 4730
CAGE: 63477 — FEDERAL MOGUL CORP SUB WAGNER BRAKE MOOG AUTOMOTIVE DIV (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
face_typeSTRAIGHT
body_stylePLAIN, SOLID
body_width3.312 INCHES NOMINAL IN
bore_stylePLAIN BOTH ENDS
body_height3.750 INCHES NOMINAL IN
body_length5.500 INCHES NOMINAL IN
inclosure_typeOPEN
pitch_diameter1.2500 INCHES NOMINAL IN
pressure_angle14.5000 DEGREES
teeth_quantity60
mounting_methodTERMINAL SINGLE GROUP
NSN4730-00-431-2970
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: FC-3963 · 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 20
2-552Interchangeable
interchangeable cross-reference
interchangeable
2359Interchangeable
interchangeable cross-reference
interchangeable
64316-1Interchangeable
interchangeable cross-reference
interchangeable
836560Interchangeable
interchangeable cross-reference
interchangeable
608D-S-331Interchangeable
interchangeable cross-reference
interchangeable
GPW1433BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FC-3963?
FC-3963 is a TRANSFORMER,RADIO FREQUENCY.
What parts can replace FC-3963?
There are 20 known substitutes for FC-3963: 2-552, 2359, 64316-1 and 17 more. Substitute compatibility should be verified for your specific system.
Is FC-3963 still available?
FC-3963 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