The Disk,clutch,vehicular, cataloged under National Stock Number 2520-01-633-4863, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is The Carlyle Johnson Machine Co, Llc Dba Carlyle Johnson Machine Co Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Disk,clutch,vehicular |
| FSC / FSG | 2520 — Vehicular Power Transmission Components (FSG 25) |
| Manufacturers | The Carlyle Johnson Machine Co, Llc Dba Carlyle Johnson Machine Co Llc (CAGE 75182) |
| Parameter | Value |
|---|---|
| NSN | 2520-01-633-4863 |
| Primary Part Number | EMA0475-113-000 |
| Item Name | Disk,clutch,vehicular |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | The Carlyle Johnson Machine Co, Llc Dba Carlyle Johnson Machine Co Llc |
| 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 |
| Part Number | Manufacturer |
|---|---|
| EMA0475-113-000 PRIMARY | The Carlyle Johnson Machine Co, Llc Dba Carlyle Johnson Machine Co Llc (USA) |
| Reference | Meaning |
|---|---|
| A14012 REV 5 ITEM 2 | C/1 Advisory reference — outside the item-of-supply concept The Carlyle Johnson Machine Co, Llc Dba Carlyle Johnson Machine Co Llc |
| A14012 | D/9 Drawing number reference only The Carlyle Johnson Machine Co, Llc Dba Carlyle Johnson Machine Co Llc |
NSN 2520-01-633-4863 is a Disk,clutch,vehicular, manufactured by The Carlyle Johnson Machine Co, Llc Dba Carlyle Johnson Machine Co Llc, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-01-633-4863 has 1 manufacturer part number on file: EMA0475-113-000 (The Carlyle Johnson Machine Co, Llc Dba Carlyle Johnson Machine Co Llc).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-633-8726. 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.