The Disk,clutch,vehicular, cataloged under National Stock Number 2520-00-730-6598, 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through both NSN and commercial part number lookups. 12 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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: Cancelled.
| Item Name | Disk,clutch,vehicular |
| FSC / FSG | 2520 — Vehicular Power Transmission Components (FSG 25) |
| Manufacturers | Cmbf Products Inc (CAGE 7R1P5); Allison Transmission Inc Dba Allison Transmission, Inc (CAGE 73342); Komatsu America Corp. (CAGE 0SAT8); U S Army Tank Automotive Command Amsta-Im-Mm (CAGE 19207) |
| Parameter | Value |
|---|---|
| NSN | 2520-00-730-6598 |
| Primary Part Number | PC-3457 |
| Item Name | Disk,clutch,vehicular |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Cmbf Products Inc |
| Status | CANCELLED |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| PC-3457 PRIMARY | Cmbf Products Inc (USA) |
| 6771491 PRIMARY | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| 196680H1 | Komatsu America Corp. (USA) |
| 8351510 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 16TX837 | C/1 Advisory reference — outside the item-of-supply concept Oshkosh Corp |
| 196680H1 | 5/9 Secondary reference Komatsu American Intl Co |
| 6771491 | 5/9 Secondary reference General Motors Corp |
| 259406C1 | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
| 2520007306598 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
| 308SH87 | 5/9 Secondary reference U.S. Government activity |
| 6771491 | 5/9 Secondary reference Friction Holdings, Llc Dba Friction Products Co Div Raybestos Powertrain |
| BD42097 | 5/9 Secondary reference Friction Holdings, Llc Dba Friction Products Co Div Raybestos Powertrain |
| 109591 | 5/9 Secondary reference Friction Holdings, Llc Dba Friction Products Co Div Raybestos Powertrain |
| PC-3457 | 5/9 Secondary reference The S K Wellman Corp Dba Wellman Friction Products |
| 6771491 | 5/9 Secondary reference Euclid Inc |
| 259406C1 | 5/9 Secondary reference U.S. Government activity |
NSN 2520-00-730-6598 is a Disk,clutch,vehicular, manufactured by Cmbf Products Inc, classified under FSC 2520, Vehicular Power Transmission Components. Status: cancelled.
NSN 2520-00-730-6598 has 4 manufacturer part numbers on file: PC-3457 (Cmbf Products Inc), 6771491 (Allison Transmission Inc Dba Allison Transmission, Inc), 196680H1 (Komatsu America Corp.), 8351510 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-506-2616. 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.
NSN 2520-00-730-6598 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.