The Disk,clutch,vehicular, cataloged under National Stock Number 2520-00-933-9495, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Cmbf Products Inc. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 2520-00-933-9495 |
| Primary Part Number | PC-1770 |
| Item Name | Disk,clutch,vehicular |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Cmbf Products Inc |
| 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 |
|---|---|
| PC-1770 PRIMARY | Cmbf Products Inc (USA) |
| 5210075 | Naval Sea Systems Command (USA) |
| 5210069-4 | Naval Sea Systems Command (USA) |
| 1694M | General Metals Powder Co (USA) |
| Reference | Meaning |
|---|---|
| 725224 | 5/9 Secondary reference American Standard Inc Westinghouse Air Brake Co Div |
| PC-1770 | 3/9 Design control — primary reference The S K Wellman Corp Dba Wellman Friction Products |
NSN 2520-00-933-9495 is a Disk,clutch,vehicular, manufactured by Cmbf Products Inc, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-00-933-9495 has 4 manufacturer part numbers on file: PC-1770 (Cmbf Products Inc), 5210075 (Naval Sea Systems Command), 5210069-4 (Naval Sea Systems Command), 1694M (General Metals Powder Co).
1 possible match (shared part number, not a government interchangeability claim): 5961-01-169-5099. Verify interchangeability with system specifications before substitution.
Key specifications for PC-1770: Special Features: THIS ITEM HAS BEEN REVIEWED FOR ASBESTOS MATERIAL;THE CURRENT APPROVED SOURCES; 79370 HAVE INDICATED THEIR PART NUMBER CONTAINED ASBESTOS MATERIAL PRIOR TO 1984;THEY CONTINUE TO MANUFACTURE THE SAME PART NUMBER WITHOUT ABESTOS MATERIAL AFTER 1984; End Item Identification: USED ON FORRESTAL CLASS CV. 0 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.