PartsTable
Technical Data Sheet
Download PDF

12277531 — GEARSHAFT,SPUR

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

12277531: GEARSHAFT,SPUR.

The GEARSHAFT,SPUR is a the manufacturer industrial component. Key specifications include face_width: 0.620 INCHES NOMINAL IN, shaft_type: SHOULDERED, gear_material: STEEL COMP 4340, overall_length: 6.000 INCHES NOMINAL IN, pressure_angle: 20.0000 DEGREES, shaft_end_size: 1.000 INCHES AND 1.296 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 3040-01-076-4392, 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
12277531
NSN: 3040-01-076-4392
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
face_width0.620 INCHES NOMINAL IN
shaft_typeSHOULDERED
gear_materialSTEEL COMP 4340
overall_length6.000 INCHES NOMINAL IN
pressure_angle20.0000 DEGREES
shaft_end_size1.000 INCHES AND 1.296 INCHES IN
shaft_end_typePLAIN AND SPLINED INVOLUTE
shaft_materialSTEEL COMP 4340
teeth_quantity111
diametral_pitch20/26
hardness_rating38.0 ROCKWELL C MAXIMUM OVERALL
gear_outside_diameter5.627 INCHES NOMINAL IN
NSN3040-01-076-4392
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEARSHAFT,SPUR TITLE COMPONENT PN 12277531 MFR GEARSHAFT,SPUR
KEY FEATURES
•
SHAFT TYPE: SHOULDERED
•
SHAFT MATERIAL: STEEL COMP 4340
•
SHAFT LARGEST DIAMETER: 1.625 INCHES NOMINAL IN
•
SHAFT END SIZE: 1.000 INCHES AND 1.296 INCHES IN
•
TEETH QUANTITY: 111
•
DIAMETRAL PITCH: 20/26
•
GEAR OUTSIDE DIAMETER: 5.627 INCHES NOMINAL IN
•
LONGER SHAFT SEGMENT LENGTH: 0.610 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SHAFT TYPESHOULDERED
SHAFT MATERIALSTEEL COMP 4340
SHAFT LARGEST DIAMETER1.625 INCHES NOMINAL IN
SHAFT END SIZE1.000 INCHES AND 1.296 INCHES IN
TEETH QUANTITY111
DIAMETRAL PITCH20/26
GEAR OUTSIDE DIAMETER5.627 INCHES NOMINAL IN
LONGER SHAFT SEGMENT LENGTH0.610 INCHES NOMINAL IN
HARDNESS RATING38.0 ROCKWELL C MAXIMUM OVERALL
OVERALL LENGTH6.000 INCHES NOMINAL IN
OTHER ITEMS IN FSC 3040 — Miscellaneous Power Transmission Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3040-00-001-0046 3040-00-001-0047 3040-00-001-0048 3040-00-001-0068 3040-00-001-0077 3040-00-001-0078 3040-00-001-0089 3040-00-001-1224
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — critical (Q)
Ready to buy 12277531?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 12277531?
12277531 is a GEARSHAFT,SPUR.
What is the NSN for 12277531?
12277531 is cataloged in the U.S. Government catalog under NSN 3040-01-076-4392. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 12277531

✓ 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.