The Disc,brake, cataloged under National Stock Number 2530-01-300-3077, is classified within Federal Supply Class 2530 (Vehicular Brake, Steering, Axle, Wheel, and Track Components) of the Vehicular Equipment Components group. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Disc,brake |
| FSC / FSG | 2530 — Vehicular Brake, Steering, Axle, Wheel, and Track Components (FSG 25) |
| Parameter | Value |
|---|---|
| NSN | 2530-01-300-3077 |
| Item Name | Disc,brake |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 330HN | 5/9 Secondary reference Rexnord Industries Llc Div Stearns |
| 3V30HN | 3/9 Design control — primary reference Rexnord Industries Llc Div Stearns |
| C-322-7 | 5/9 Secondary reference Rexnord Industries Llc Div Stearns |
| N-322-D | D/9 Drawing number reference only Rexnord Industries Llc Div Stearns |
NSN 2530-01-300-3077 is a Disc,brake, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3950-01-451-7942. Verify interchangeability with system specifications before substitution.
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.