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2277641 — GEAR SECTOR,SPUR

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

2277641: GEAR SECTOR,SPUR.

The GEAR SECTOR,SPUR is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, tooth_form: STANDARD, pitch_radius: 3.6666 INCHES NOMINAL IN, pressure_angle: 14.5000 DEGREES, teeth_quantity: 44, style_designator: HUBLESS. This part is cataloged in the U.S.

Government catalog under NSN 3020-01-210-4360, 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
2277641
NSN: 3020-01-210-4360
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
tooth_formSTANDARD
pitch_radius3.6666 INCHES NOMINAL IN
pressure_angle14.5000 DEGREES
teeth_quantity44
style_designatorHUBLESS
arc_nominal_length7.416 INCHES IN
face_nominal_width0.437 INCHES IN
nominal_outside_radius3.833 INCHES IN
material_document_and_classificationQQ-N-281,CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN3020-01-210-4360
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEAR SECTOR,SPUR TITLE COMPONENT PN 2277641 MFR GEAR SECTOR,SPUR
KEY FEATURES
•
TEETH QUANTITY: 44
•
NOMINAL OUTSIDE RADIUS: 3.833 INCHES IN
•
STYLE DESIGNATOR: HUBLESS
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281,CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
TOOTH FORM: STANDARD
•
ARC NOMINAL LENGTH: 7.416 INCHES IN
•
PITCH RADIUS: 3.6666 INCHES NOMINAL IN
•
PRESSURE ANGLE: 14.5000 DEGREES
TECHNICAL CHARACTERISTICS
TEETH QUANTITY44
NOMINAL OUTSIDE RADIUS3.833 INCHES IN
STYLE DESIGNATORHUBLESS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281,CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
TOOTH FORMSTANDARD
ARC NOMINAL LENGTH7.416 INCHES IN
PITCH RADIUS3.6666 INCHES NOMINAL IN
PRESSURE ANGLE14.5000 DEGREES
MATERIALNICKEL ALLOY OVERALL
FACE NOMINAL WIDTH0.437 INCHES IN
OTHER ITEMS IN FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3020-00-000-0091 3020-00-001-0027 3020-00-001-0028 3020-00-001-0063 3020-00-001-0064 3020-00-001-0066 3020-00-001-0071 3020-00-001-0072
SUBSTITUTES & CROSS-REFERENCES 1
1079-501-39 PIEReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 2277641?
2277641 is a GEAR SECTOR,SPUR.
What parts can replace 2277641?
There is 1 known substitute for 2277641: 1079-501-39 PIE. Substitute compatibility should be verified for your specific system.
What is the NSN for 2277641?
2277641 is cataloged in the U.S. Government catalog under NSN 3020-01-210-4360. 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.