The Camshaft,actuating,brake Shoe, cataloged under National Stock Number 2530-01-503-4955, 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 Oshkosh Defense Llc. Government technical data includes 12 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2530-01-503-4955 |
| Primary Part Number | 3684278 |
| Item Name | Camshaft,actuating,brake Shoe |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| Shaft Diameter | 1.475 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Cam Location | ON END |
| Length | 2.673 INCHES NOMINAL IN |
| Cam Shape | S |
| Drive Type | STRAIGHT SPLINE |
| Cam Overall Length | 3.120 INCHES NOMINAL IN |
| Cam Quantity | 1 |
| Shaft Length | 9.125 INCHES NOMINAL IN |
| Spline Quantity | 10 |
| Minor Diameter | 1.129 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN |
| Major Diameter | 1.500 INCHES NOMINAL IN |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| 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 |
|---|---|
| 3684278 | Oshkosh Defense Llc (USA) |
| 3281243 | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 817702 | 5/9 Secondary reference Eaton Corp Axle Div Glasgow Plant |
| 806303 | D/9 Drawing number reference only Spicer Heavy Axle & Brake, Inc. |
| 3281243 | 5/9 Secondary reference Oshkosh Corp |
| 817702 | 3/2 Design control — primary reference U.S. Government activity |
| 3684278 | 5/9 Secondary reference Oshkosh Corp |
NSN 2530-01-503-4955 is a Camshaft,actuating,brake Shoe, manufactured by Oshkosh Defense Llc, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-01-503-4955 has 2 manufacturer part numbers on file: 3684278 (Oshkosh Defense Llc), 3281243 (Oshkosh Defense Llc).
1 possible match (shared part number, not a government interchangeability claim): 2530-01-503-5289. Verify interchangeability with system specifications before substitution.
Key specifications for 3684278: Shaft Diameter: 1.475 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN; Cam Location: ON END; Length: 2.673 INCHES NOMINAL IN; Cam Shape: S. 12 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.