The Disk,clutch,vehicular, cataloged under National Stock Number 2520-00-349-8974, 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. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2520-00-349-8974 |
| Primary Part Number | PC-4193 |
| Item Name | Disk,clutch,vehicular |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Cmbf Products Inc |
| Status | ACTIVE |
| Disk Material | STEEL |
| Design Type | WET |
| Teeth Quantity Per Disk | 120 |
| Outside Diameter | 14.250 INCHES NOMINAL IN |
| Flexibility | RIGID |
| Disk Type | EXTERNAL TEETH |
| Features Provided | FRICTION MATERIAL FACING AND MATERIAL FACING GROOVE |
| Material | COPPER ALLOY |
| Construction | SOLID |
| 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-4193 PRIMARY | Cmbf Products Inc (USA) |
| 5S0071 | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| PC-4193 | 3/9 Design control — primary reference The S K Wellman Corp Dba Wellman Friction Products |
| 5S71 | 5/9 Secondary reference Caterpillar Inc Div Caterpillar Defense |
NSN 2520-00-349-8974 is a Disk,clutch,vehicular, manufactured by Cmbf Products Inc, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-00-349-8974 has 2 manufacturer part numbers on file: PC-4193 (Cmbf Products Inc), 5S0071 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for PC-4193: Disk Material: STEEL; Design Type: WET; Teeth Quantity Per Disk: 120; Outside Diameter: 14.250 INCHES NOMINAL IN. 9 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.