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258512 — DIAPHRAGM,CHAMBER,BRAKE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

258512: DIAPHRAGM,CHAMBER,BRAKE.

The DIAPHRAGM,CHAMBER,BRAKE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, teeth_quantity: 79. This part is cataloged in the U.S.

Government catalog under NSN 2530-00-430-2392, 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
258512
NSN: 2530-00-430-2392
NIINs: 004302392, 013064036
FSC: 2530 — Vehicular Brake, Steering, Axle, Wheel, and Track Components
CAGE: 79146 — VELVAC INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
teeth_quantity79
NSN2530-00-430-2392
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available DIAPHRAGM,CHAMBER,BRAKE TITLE COMPONENT PN 258512 MFR DIAPHRAGM,CHAMBER,BRAK
KEY FEATURES
•
DIAPHRAGM TYPE: BEADED ANGULAR RECESSED
•
MOUNTING METHOD: BEAD
•
OVERALL OUTSIDE DIAMETER: 5.500 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.130 INCHES NOMINAL IN
•
ENVIRONMENTAL PROTECTION: OIL RESISTANT
•
MATERIAL: RUBBER POLYISOPRENE NATURAL CLASS NR
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.250 INCHES NOMINAL IN
DIAPHRAGM TYPEBEADED ANGULAR RECESSED
MOUNTING METHODBEAD
OVERALL OUTSIDE DIAMETER5.500 INCHES NOMINAL IN
MATERIAL THICKNESS0.130 INCHES NOMINAL IN
ENVIRONMENTAL PROTECTIONOIL RESISTANT
MATERIALRUBBER POLYISOPRENE NATURAL CLASS NR
SUBSTITUTES & CROSS-REFERENCES 8
3107860Reference document
Same NSN cross-reference
Reference document — Secondary reference
440259Reference document
Same NSN cross-reference
Reference document — Secondary reference
AD17544Reference document
Same NSN cross-reference
Reference document — Secondary reference
L-821Reference document
Same NSN cross-reference
Reference document — Secondary reference
843631Reference document
Same NSN cross-reference
Reference document — Secondary reference
806747Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 258512?
258512 is a DIAPHRAGM,CHAMBER,BRAKE.
What parts can replace 258512?
There are 8 known substitutes for 258512: 3107860, 440259, AD17544 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 258512?
258512 is cataloged in the U.S. Government catalog under NSN 2530-00-430-2392. 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.