The Chamber,air Brake, cataloged under National Stock Number 2530-01-581-9780, 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 Meritor Heavy Vehicle Systems, Llc. Government technical data includes 2 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2530-01-581-9780 |
| Primary Part Number | KSMR3PHS50-800NN |
| Item Name | Chamber,air Brake |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Meritor Heavy Vehicle Systems, Llc |
| Status | ACTIVE |
| Push Rod Length | 8.000 INCHES IN |
| Stroke Length | 3.000 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 |
|---|---|
| KSMR3PHS50-800NN PRIMARY | Meritor Heavy Vehicle Systems, Llc (USA) |
| MA15624 | Meritor Heavy Vehicle Systems, Llc (USA) |
NSN 2530-01-581-9780 is a Chamber,air Brake, manufactured by Meritor Heavy Vehicle Systems, Llc, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-01-581-9780 has 2 manufacturer part numbers on file: KSMR3PHS50-800NN (Meritor Heavy Vehicle Systems, Llc), MA15624 (Meritor Heavy Vehicle Systems, Llc).
Key specifications for KSMR3PHS50-800NN: Special Features: 50 POUND SPRING; 125 PSI MAX HYD PRESS, R-SERIES SPRING BRAKE LBS; Part Name Assigned by Controlling Agency: CHAMBER, AIR BRAKE; End Item Identification: SEMI TRAILER, LOWBED WITH RAMPS 25 TON- BRAKE GROUP; Push Rod Length: 8.000 INCHES IN. 2 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.