The Brake Drum, cataloged under National Stock Number 2530-00-972-8430, 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 Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2530-00-972-8430 |
| Primary Part Number | 662516 |
| Item Name | Brake Drum |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer |
| Status | ACTIVE |
| Overall Outside Diameter | 13.375 INCHES NOMINAL IN |
| Center Hole Diameter | 1.800 INCHES NOMINAL 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 |
|---|---|
| 662516 PRIMARY | Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (USA) |
| Reference | Meaning |
|---|---|
| 553152 | 5/9 Secondary reference Evinrude Motors Product Group of Outboard Marine Corp |
| 1146PC262K | 5/9 Secondary reference Outboard Marine Corp Johnson Motors Div |
| 553152 | 5/9 Secondary reference Outboard Marine Corp Johnson Motors Div |
| 1146PC262K | 5/9 Secondary reference Evinrude Motors Product Group of Outboard Marine Corp |
| 1146PC262K | 5/9 Secondary reference U.S. Government activity |
| 553152 | 5/9 Secondary reference U.S. Government activity |
NSN 2530-00-972-8430 is a Brake Drum, manufactured by Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-00-972-8430 has 1 manufacturer part number on file: 662516 (Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer).
1 possible match (shared part number, not a government interchangeability claim): 5365-01-181-0399. Verify interchangeability with system specifications before substitution.
Key specifications for 662516: Overall Width: 4.000 INCHES NOMINAL IN; Overall Outside Diameter: 13.375 INCHES NOMINAL IN; Center Hole Diameter: 1.800 INCHES NOMINAL 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.