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3905709 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

3905709: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY BODY, leg_length: 0.562 INCHES NOMINAL IN, seat_angle: 37.0 DEGREES, thread_class: 2A ALL ENDS A, overall_length: 2.283 INCHES NOMINAL IN, connection_type: INTERNAL QUICK DISCONNECT ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4710-01-291-0274, 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
3905709
NSN: 4710-01-291-0274
FSC: 4710 — Pipe, Tube and Rigid Tubing
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
materialALUMINUM ALLOY BODY
leg_length0.562 INCHES NOMINAL IN
seat_angle37.0 DEGREES
thread_class2A ALL ENDS A
overall_length2.283 INCHES NOMINAL IN
connection_typeINTERNAL QUICK DISCONNECT ALL ENDS
connection_styleFLARED ALL ENDS
style_designatorMALE COUPLING HALF
features_providedSELF-SEALING
surface_treatmentANODIZE BODY
nominal_thread_size0.562 INCHES ALL ENDS IN
quick_disconnect_methodSPRING PUSH-LOCK ALL ENDS
NSN4710-01-291-0274
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 3905709 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES 4
4710PL0824484Reference document
Same NSN cross-reference
Reference document — Informative reference only
3920891Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
J905709Reference document
Same NSN cross-reference
Reference document — Secondary reference
3905446Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3905709?
3905709 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 3905709?
There are 4 known substitutes for 3905709: 4710PL0824484, 3920891, J905709 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3905709?
3905709 is cataloged in the U.S. Government catalog under NSN 4710-01-291-0274. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.