The Chamber,air Brake, cataloged under National Stock Number 2530-01-302-2583, 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 U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2530-01-302-2583 |
| Primary Part Number | 12357788-1 |
| Item Name | Chamber,air Brake |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Stroke Length | 2.500 INCHES IN |
| 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 |
|---|---|
| 12357788-1 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 12357788-1W | Windward Enterprises, Llc (USA) |
| Reference | Meaning |
|---|---|
| 12357788 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 2530-01-302-2583 is a Chamber,air Brake, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-01-302-2583 has 2 manufacturer part numbers on file: 12357788-1 (U S Army Tank Automotive Command Amsta-Im-Mm), 12357788-1W (Windward Enterprises, Llc).
1 possible match (shared part number, not a government interchangeability claim): 2530-01-303-0085. Verify interchangeability with system specifications before substitution.
Key specifications for 12357788-1: Special Features: DIA O/A 8.375 IN.;FORK WIDTH:0.562 IN.;DISTANCE FROM PIVOT PIN HOLE CENTER TO ROD CONNECTOR END;STROKE TYPE:NORMAL WORKING RANGE;INLET LOCATION:CENTRAL;CLEVIS STYLE DESIGNATOR IN; End Item Identification: 2330-00-133-1731; Stroke Length: 2.500 INCHES IN. 1 specification is 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.