The Valve,brake Pneumatic, cataloged under National Stock Number 2530-00-028-9988, 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 Caterpillar Inc Div Caterpillar Defense. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2530-00-028-9988 |
| Primary Part Number | 1-6G1587 |
| Item Name | Valve,brake Pneumatic |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Second End Relationship with First End | NOT IDENTICAL |
| Third End Relationship with Preceding Ends | NOT IDENTICAL WITH FIRST OR SECOND END |
| First End Style Designator | PLAIN |
| Valve Operation Method | FOOT |
| Second End Nominal Pipe Size Accommodated | 0.375 INCHES IN |
| Third End Nominal Pipe Size Accommodated | 0.250 INCHES IN |
| End Connection Quantity | 3 |
| Second End Style Designator | PLAIN |
| First End Nominal Pipe Size Accommodated | 0.500 INCHES IN |
| Material | ALUMINUM BODY |
| Third End Style Designator | PLAIN |
| 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 |
|---|---|
| 1-6G1587 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| 278434 PRIMARY | Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems (USA) |
| Reference | Meaning |
|---|---|
| 5D3640 | 5/9 Secondary reference Caterpillar Inc Div Caterpillar Defense |
NSN 2530-00-028-9988 is a Valve,brake Pneumatic, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-00-028-9988 has 2 manufacturer part numbers on file: 1-6G1587 (Caterpillar Inc Div Caterpillar Defense), 278434 (Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems).
2 possible matches (shared part number, not a government interchangeability claim): 5360-00-088-5211, 6150-00-725-8123. Verify interchangeability with system specifications before substitution.
Key specifications for 1-6G1587: Second End Relationship with First End: NOT IDENTICAL; Third End Relationship with Preceding Ends: NOT IDENTICAL WITH FIRST OR SECOND END; First End Style Designator: PLAIN; Valve Operation Method: FOOT. 11 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.