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PartsTable / COMPONENT / 33891-A
33891-A ✓ 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 CLUTCH HALF,POSITIVE,VEHICULAR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, special_features: WEAPON SYSTEM ESSENTIAL, style_designator: STRAIGHT, CAP FEED, surface_treatment: ZINC OVERALL, criticality_code_justification: FEAT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-307-8447, 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
33891-A
NSN: 4730-01-307-8447
FSC: 4730
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
materialSTEEL OVERALL
special_featuresWEAPON SYSTEM ESSENTIAL
style_designatorSTRAIGHT, CAP FEED
surface_treatmentZINC OVERALL
criticality_code_justificationFEAT
NSN4730-01-307-8447
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 33891-A · 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
•
SURFACE TREATMENT: ZINC OVERALL
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: STRAIGHT, CAP FEED
•
CRITICALITY CODE JUSTIFICATION: FEAT
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTZINC OVERALL
MATERIALSTEEL OVERALL
STYLE DESIGNATORSTRAIGHT, CAP FEED
CRITICALITY CODE JUSTIFICATIONFEAT
SPECIAL FEATURESWEAPON SYSTEM ESSENTIAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
A-33891-AInterchangeable
interchangeable cross-reference
interchangeable
3504-5-70Interchangeable
interchangeable cross-reference
interchangeable
4015T51P03Interchangeable
interchangeable cross-reference
interchangeable
25007Interchangeable
interchangeable cross-reference
interchangeable
DLN25007Interchangeable
interchangeable cross-reference
interchangeable
WWN351Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 33891-A?
33891-A is a CLUTCH HALF,POSITIVE,VEHICULAR.
What parts can replace 33891-A?
There are 28 known substitutes for 33891-A: A-33891-A, 3504-5-70, 4015T51P03 and 25 more. Substitute compatibility should be verified for your specific system.
Is 33891-A still available?
33891-A 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