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280377 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The CHAMBER BRAKE ASY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, surface_treatment: CHROMIUM OVERALL, wrenching_surface_size: 0.485 INCHES MINIMUM AND 0.495 INCHES MAXIMUM SINGLE END IN, wrenching_surface_shape: SQUARE SINGLE END EXTERNAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-00-632-2021, 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
280377
NSN: 5120-00-632-2021
FSC: 5120
CAGE: 99193 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL DIV AEROSPACE - PHOENIX (USA)
SPECIFICATIONS
materialSTEEL OVERALL
surface_treatmentCHROMIUM OVERALL
wrenching_surface_size0.485 INCHES MINIMUM AND 0.495 INCHES MAXIMUM SINGLE END IN
wrenching_surface_shapeSQUARE SINGLE END EXTERNAL
NSN5120-00-632-2021
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CHAMBER BRAKE ASY TITLE COMPONENT PN 280377 MFR CHAMBER BRAKE ASY
KEY FEATURES
•
SURFACE TREATMENT: CHROMIUM OVERALL
•
MATERIAL: STEEL OVERALL
•
WRENCHING SURFACE SHAPE: SQUARE SINGLE END EXTERNAL
•
WRENCHING SURFACE SIZE: 0.485 INCHES MINIMUM AND 0.495 INCHES MAXIMUM SINGLE END IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTCHROMIUM OVERALL
MATERIALSTEEL OVERALL
WRENCHING SURFACE SHAPESQUARE SINGLE END EXTERNAL
WRENCHING SURFACE SIZE0.485 INCHES MINIMUM AND 0.495 INCHES MAXIMUM SINGLE END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
28077-001Interchangeable
interchangeable cross-reference
interchangeable
28077Interchangeable
interchangeable cross-reference
interchangeable
29031Interchangeable
interchangeable cross-reference
interchangeable
34375WInterchangeable
interchangeable cross-reference
interchangeable
728967Interchangeable
interchangeable cross-reference
interchangeable
LS-28049-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 280377?
280377 is a CHAMBER BRAKE ASY.
What parts can replace 280377?
There are 11 known substitutes for 280377: 28077-001, 28077, 29031 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 280377?
280377 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-00-632-2021. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026