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7-311670305-3 — TUBE ASSEMBLY,METAL

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

7-311670305-3: TUBE ASSEMBLY,METAL.

The TUBE ASSEMBLY,METAL is a the manufacturer industrial component. Key specifications include material: NICKEL OVERALL, bore_style: W/ KEYWAY BOTH ENDS, special_features: USED AS CAMSHAFT GEAR, IN CLARK EQUIPMENT DIESEL ENGINE TMD27, style_designator: ONE PROTRUDING HUB, ONE RECESSED HUB, attachment_method: MOUNTING HOLE, hub_style_designator: PLAIN BOTH ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4710-01-245-0245, 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
7-311670305-3
NSN: 4710-01-245-0245
FSC: 4710 — Pipe, Tube and Rigid Tubing
CAGE: 02731 — MCDONNELL DOUGLAS HELICOPTER CO INC (USA)
SPECIFICATIONS
materialNICKEL OVERALL
bore_styleW/ KEYWAY BOTH ENDS
special_featuresUSED AS CAMSHAFT GEAR, IN CLARK EQUIPMENT DIESEL ENGINE TMD27
style_designatorONE PROTRUDING HUB, ONE RECESSED HUB
attachment_methodMOUNTING HOLE
hub_style_designatorPLAIN BOTH ENDS
end_item_identification3930-01-384-5310
mounting_hole_type_and_quantity3 THREADED AXIALLY THROUGH BODY FIRST END
NSN4710-01-245-0245
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 7-311670305-3 · 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 3
7-311670305Reference document
Same NSN cross-reference
Reference document — Secondary reference
91007-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
ACE1007-3Reference 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 7-311670305-3?
7-311670305-3 is a TUBE ASSEMBLY,METAL.
What parts can replace 7-311670305-3?
There are 3 known substitutes for 7-311670305-3: 7-311670305, 91007-3, ACE1007-3. Substitute compatibility should be verified for your specific system.
What is the NSN for 7-311670305-3?
7-311670305-3 is cataloged in the U.S. Government catalog under NSN 4710-01-245-0245. 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.