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A-TB-977-1 — COUPLING HALF,SHAFT

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

A-TB-977-1: COUPLING HALF,SHAFT.

The COUPLING HALF,SHAFT is a the manufacturer industrial component. Key specifications include bore_shape: STRAIGHT, bore_length: 1.1880 INCHES NOMINAL IN, bore_diameter: 0.8750 INCHES NOMINAL IN, overall_length: 1.188 INCHES NOMINAL IN, features_provided: KEYWAY. This part is cataloged in the U.S.

Government catalog under NSN 3010-01-283-2092, 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
A-TB-977-1
NSN: 3010-01-283-2092
FSC: 3010 — Torque Converters and Speed Changers
CAGE: 08832 — SCHROEDER INDUSTRIES LLC (USA)
SPECIFICATIONS
bore_shapeSTRAIGHT
bore_length1.1880 INCHES NOMINAL IN
bore_diameter0.8750 INCHES NOMINAL IN
overall_length1.188 INCHES NOMINAL IN
special_featuresKEYWAY WIDTH:1.188" NOM.; DISTANCE FROM CENTER OF BORE TO BOTTOM OF KEYWAY:0.531" NOM.; THREAD PROVISION:UNTHREADED; HUB OD:2.375" NOM.; KEYING FACILITY QTY:1; TYPE/MODEL DESIGNATION:HTB-100-E
features_providedKEYWAY
NSN3010-01-283-2092
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COUPLING HALF,SHAFT TITLE COMPONENT PN A-TB-977-1 MFR COUPLING HALF,SHAFT
KEY FEATURES
•
BORE LENGTH: 1.1880 INCHES NOMINAL IN
•
FEATURES PROVIDED: KEYWAY
•
BORE SHAPE: STRAIGHT
•
BORE DIAMETER: 0.8750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
BORE LENGTH1.1880 INCHES NOMINAL IN
OVERALL LENGTH1.188 INCHES NOMINAL IN
FEATURES PROVIDEDKEYWAY
BORE SHAPESTRAIGHT
SPECIAL FEATURESKEYWAY WIDTH:1.188" NOM.; DISTANCE FROM CENTER OF BORE TO BOTTOM OF KEYWAY:0.531" NOM.; THREAD PROVISION:UNTHREADED; HUB OD:2.375" NOM.; KEYING FACILITY QTY:1; TYPE/MODEL DESIGNATION:HTB-100-E
BORE DIAMETER0.8750 INCHES NOMINAL IN
OTHER ITEMS IN FSC 3010 — Torque Converters and Speed Changers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3010-00-010-0577 3010-00-267-4959 3010-00-356-3346 3010-00-395-0188
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A-TB-977-1?
A-TB-977-1 is a COUPLING HALF,SHAFT.
What is the NSN for A-TB-977-1?
A-TB-977-1 is cataloged in the U.S. Government catalog under NSN 3010-01-283-2092. 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.