The Diaphragm,chamber,brake, cataloged under National Stock Number 2530-00-367-3638, is classified within Federal Supply Class 2530 (Vehicular Brake, Steering, Axle, Wheel, and Track Components) of the Vehicular Equipment Components group. The manufacturer of record is Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2530-00-367-3638 |
| Primary Part Number | 202725 |
| Item Name | Diaphragm,chamber,brake |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems |
| Status | ACTIVE |
| Mounting Hole Quantity | 10 |
| FSC Application Data | VEHICULAR BRAKE |
| Diaphragm Type | FLANGED ANGULAR RECESSED |
| Mounting Hole Spacing | EQUALLY SPACED ON 4.687 IN. PORM .005 DIA BOLT CIRCLE IN |
| Mounting Method | FLANGE |
| Mounting Hole Diameter | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Overall Outside Diameter | 5.234 INCHES MINIMUM AND 5.266 INCHES MAXIMUM IN |
| Material Thickness | 0.172 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN |
| Construction | FABRIC INSERT |
| Material | RUBBER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 202725 PRIMARY | Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems (USA) |
| 167773R1 | Komatsu America Corp. (USA) |
| Reference | Meaning |
|---|---|
| 167773R1 | 5/2 Secondary reference U.S. Government activity |
| 86-6185 | 5/9 Secondary reference Alliedsignal Inc Alliedsignal Braking Systems-Wheel End Products |
| 806733 | 5/9 Secondary reference Terex American Crane Corp |
| 167773R1 | 5/9 Secondary reference Komatsu American Intl Co |
| 806733 | 5/9 Secondary reference American Hoist and Derrick Co |
| 202725 | 5/2 Secondary reference U.S. Government activity |
NSN 2530-00-367-3638 is a Diaphragm,chamber,brake, manufactured by Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-00-367-3638 has 2 manufacturer part numbers on file: 202725 (Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems), 167773R1 (Komatsu America Corp.).
1 possible match (shared part number, not a government interchangeability claim): 3120-01-103-4221. Verify interchangeability with system specifications before substitution.
Key specifications for 202725: Mounting Hole Quantity: 10; FSC Application Data: VEHICULAR BRAKE; Diaphragm Type: FLANGED ANGULAR RECESSED; Mounting Hole Spacing: EQUALLY SPACED ON 4.687 IN. PORM .005 DIA BOLT CIRCLE IN. 10 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.