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Technical Data Sheet
PartsTable / COMPONENT / 6-H31
6-H31 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: STEEL BODY, leg_length: 0.750 INCHES NOMINAL IN, connection_type: INTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END, furnished_items: PREFORMED PACKING AND SPRING, connection_style: GASKET SEAL ALL ENDS, style_designator: MALE COUPLING HALF. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-117-1318, 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
6-H31
NSN: 5330-01-117-1318
FSC: 5330
CAGE: 12603 — CLARK EQUIPMENT CO (USA)
SPECIFICATIONS
materialSTEEL BODY
leg_length0.750 INCHES NOMINAL IN
connection_typeINTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END
furnished_itemsPREFORMED PACKING AND SPRING
connection_styleGASKET SEAL ALL ENDS
style_designatorMALE COUPLING HALF
features_providedSELF-SEALING
nominal_thread_size0.750 INCHES ALL ENDS IN
quick_disconnect_methodSPRING PUSH-PULL SECOND QUICK DISCONNECT END
thread_series_designatorNPT ALL ENDS
mating_end_identificationHANSEN MFG CO. COUPLING HALF,QUICK DISCONNECT,PART NO. 6-K31
quick_disconnect_nominal_size0.750 INCHES SECOND QUICK DISCONNECT END IN
NSN5330-01-117-1318
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6-H31 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
3961-2Interchangeable
interchangeable cross-reference
interchangeable
941AS106-1Interchangeable
interchangeable cross-reference
interchangeable
941AS106Interchangeable
interchangeable cross-reference
interchangeable
33817117Interchangeable
interchangeable cross-reference
interchangeable
2415304Interchangeable
interchangeable cross-reference
interchangeable
1PE282Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6-H31?
6-H31 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 6-H31?
There are 12 known substitutes for 6-H31: 3961-2, 941AS106-1, 941AS106 and 9 more. Substitute compatibility should be verified for your specific system.
Is 6-H31 still available?
6-H31 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