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Technical Data Sheet
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1321801 — PLATE,BACKING,BRAKE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

1321801: PLATE,BACKING,BRAKE.

The PLATE,BACKING,BRAKE is a the manufacturer industrial component. Key specifications include end_item_identification: 3930-01-158-0849. This part is cataloged in the U.S.

Government catalog under NSN 3020-00-198-4002, 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
1321801
NSN: 3020-00-198-4002
NIINs: 001984002, 013286578
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 24930 — L3HARRIS TECHNOLOGIES, INC DIV SPACE & AIRBORNE SYSTEMS (USA)
SPECIFICATIONS
end_item_identification3930-01-158-0849
NSN3020-00-198-4002
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PLATE,BACKING,BRAKE TITLE COMPONENT PN 1321801 MFR PLATE,BACKING,BRAKE
KEY FEATURES
•
BORE NOMINAL DIAMETER: 0.240 INCHES BOTH ENDS IN
•
HELIX ANGLE: 45.0000 DEGREES
•
HUB NOMINAL DIAMETER: 0.375 INCHES FIRST END IN
•
BACKLASH DESIGNATION: GRADE C
•
TEETH QUANTITY: 80
•
BODY STYLE: PLAIN, SOLID
•
TOOTH DIRECTION: LEFT
•
BORE STYLE: PLAIN BOTH ENDS
TECHNICAL CHARACTERISTICS
BORE NOMINAL DIAMETER0.240 INCHES BOTH ENDS IN
HELIX ANGLE45.0000 DEGREES
HUB NOMINAL DIAMETER0.375 INCHES FIRST END IN
BACKLASH DESIGNATIONGRADE C
TEETH QUANTITY80
BODY STYLEPLAIN, SOLID
TOOTH DIRECTIONLEFT
BORE STYLEPLAIN BOTH ENDS
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.219 INCHES FIRST END IN
PRECISION CLASSIFICATIONQUALITY NUMBER 10
SUBSTITUTES & CROSS-REFERENCES 1
132180Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1321801?
1321801 is a PLATE,BACKING,BRAKE.
What parts can replace 1321801?
There is 1 known substitute for 1321801: 132180. Substitute compatibility should be verified for your specific system.
What is the NSN for 1321801?
1321801 is cataloged in the U.S. Government catalog under NSN 3020-00-198-4002. 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.