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2999657 — COUPLING,SHAFT,FLEXIBLE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

2999657: COUPLING,SHAFT,FLEXIBLE.

The COUPLING,SHAFT,FLEXIBLE is a the manufacturer industrial component. Key specifications include bore_shape: STRAIGHT BOTH ENDS, bore_length: 1.0625 INCHES NOMINAL BOTH ENDS IN, design_type: INSERT, keyway_depth: 0.1562 INCHES NOMINAL BOTH ENDS IN, keyway_width: 0.312 INCHES NOMINAL BOTH ENDS IN, bore_diameter: 1.1250 INCHES NOMINAL BOTH ENDS IN. This part is cataloged in the U.S.

Government catalog under NSN 3010-01-325-3018, 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
2999657
NSN: 3010-01-325-3018
FSC: 3010 — Torque Converters and Speed Changers
CAGE: 47WD8 — EVAC NORTH AMERICA INC (USA)
SPECIFICATIONS
bore_shapeSTRAIGHT BOTH ENDS
bore_length1.0625 INCHES NOMINAL BOTH ENDS IN
design_typeINSERT
keyway_depth0.1562 INCHES NOMINAL BOTH ENDS IN
keyway_width0.312 INCHES NOMINAL BOTH ENDS IN
bore_diameter1.1250 INCHES NOMINAL BOTH ENDS IN
overall_length2.875 INCHES NOMINAL IN
insert_materialRUBBER CHLOROPRENE CLASS CR
outside_diameter3.250 INCHES NOMINAL IN
features_providedKEYWAY
keying_facility_typeKEYWAY BOTH ENDS
keying_facility_quantity1 BOTH ENDS
NSN3010-01-325-3018
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COUPLING,SHAFT,FLEXIBLE TITLE COMPONENT PN 2999657 MFR COUPLING,SHAFT,FLEXIBL
KEY FEATURES
•
KEYWAY DEPTH: 0.1562 INCHES NOMINAL BOTH ENDS IN
•
BORE LENGTH: 1.0625 INCHES NOMINAL BOTH ENDS IN
•
DESIGN TYPE: INSERT
•
KEYING FACILITY TYPE: KEYWAY BOTH ENDS
•
OUTSIDE DIAMETER: 3.250 INCHES NOMINAL IN
•
FEATURES PROVIDED: KEYWAY
•
BORE SHAPE: STRAIGHT BOTH ENDS
TECHNICAL CHARACTERISTICS
KEYWAY DEPTH0.1562 INCHES NOMINAL BOTH ENDS IN
BORE LENGTH1.0625 INCHES NOMINAL BOTH ENDS IN
DESIGN TYPEINSERT
KEYING FACILITY TYPEKEYWAY BOTH ENDS
OVERALL LENGTH2.875 INCHES NOMINAL IN
OUTSIDE DIAMETER3.250 INCHES NOMINAL IN
FEATURES PROVIDEDKEYWAY
BORE SHAPESTRAIGHT BOTH ENDS
KEYING FACILITY QUANTITY1 BOTH ENDS
KEYWAY WIDTH0.312 INCHES NOMINAL BOTH ENDS IN
SUBSTITUTES & CROSS-REFERENCES 1
5JReference 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 2999657?
2999657 is a COUPLING,SHAFT,FLEXIBLE.
What parts can replace 2999657?
There is 1 known substitute for 2999657: 5J. Substitute compatibility should be verified for your specific system.
What is the NSN for 2999657?
2999657 is cataloged in the U.S. Government catalog under NSN 3010-01-325-3018. 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.