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PartsTable / COMPONENT / 955AS331-1
955AS331-1 ✓ 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 COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include color: BLACK, DULL OVERALL, material: COPPER ALLOY OVERALL, overall_length: 4.563 INCHES NOMINAL IN, mounting_method: BOLT, handle_clearance: 1.500 INCHES NOMINAL IN, special_features: NHA IS BRAKE ASSEMBLY;MFR PART NAME IS BRAKE CARRIER, RH. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-849-0633, 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
955AS331-1
NSN: 4730-00-849-0633
FSC: 4730
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
colorBLACK, DULL OVERALL
materialCOPPER ALLOY OVERALL
overall_length4.563 INCHES NOMINAL IN
mounting_methodBOLT
handle_clearance1.500 INCHES NOMINAL IN
special_featuresNHA IS BRAKE ASSEMBLY;MFR PART NAME IS BRAKE CARRIER, RH
style_designatorROUND
end_item_identification3830-01-538-1421, WINCH ATTACHMENT, SINGLE DRUM, MODEL PA80
mounting_facility_quantity2
flange_mounting_hole_quantity7
part_name_assigned_by_controlling_agencyHANDLE,BOW
NSN4730-00-849-0633
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 955AS331-1 · 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 17
K2722Interchangeable
interchangeable cross-reference
interchangeable
X1958Interchangeable
interchangeable cross-reference
interchangeable
42-6880-200-270Interchangeable
interchangeable cross-reference
interchangeable
103429Interchangeable
interchangeable cross-reference
interchangeable
PF24-3906-25ZH2Interchangeable
interchangeable cross-reference
interchangeable
103414Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 955AS331-1?
955AS331-1 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 955AS331-1?
There are 17 known substitutes for 955AS331-1: K2722, X1958, 42-6880-200-270 and 14 more. Substitute compatibility should be verified for your specific system.
Is 955AS331-1 still available?
955AS331-1 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