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12640551 — DISK,CLUTCH,VEHICULAR

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

12640551: DISK,CLUTCH,VEHICULAR.

The DISK,CLUTCH,VEHICULAR is a the manufacturer industrial component. Key specifications include part_name_assigned_by_controlling_agency: CLUTCH. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-570-7912, 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
12640551
NSN: 4730-01-570-7912
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
end_item_identification2320-01-565-3428 CHASSIS,TRUCK, M1140A1,TRUCK,CARRIER VEHICLE,FMTV/AIR,FMTVA192; HIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS)
part_name_assigned_by_controlling_agencyCLUTCH
NSN4730-01-570-7912
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 12640551 · 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
SUBSTITUTES & CROSS-REFERENCES 1
12505694Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12640551?
12640551 is a DISK,CLUTCH,VEHICULAR.
What parts can replace 12640551?
There is 1 known substitute for 12640551: 12505694. Substitute compatibility should be verified for your specific system.
What is the NSN for 12640551?
12640551 is cataloged in the U.S. Government catalog under NSN 4730-01-570-7912. This indicates validated use in U.S. government and defense supply chains.
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