The Disk,clutch,vehicular, cataloged under National Stock Number 2520-01-070-9005, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Kalmar AC Inc. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2520-01-070-9005 |
| Primary Part Number | 74987604-1 |
| Item Name | Disk,clutch,vehicular |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Kalmar AC Inc |
| Status | ACTIVE |
| Disk Material | STEEL |
| Spline Type | INVOLUTE |
| Design Type | WET |
| Outside Diameter | 20.000 INCHES NOMINAL IN |
| Flexibility | RIGID |
| Disk Type | PLAIN |
| Features Provided | FRICTION MATERIAL FACING AND MATERIAL FACING GROOVE |
| Spline Quantity | 15 |
| Material | FIBER |
| Construction | SPLIT |
| 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 |
|---|---|
| 74987604-1 | Kalmar AC Inc (USA) |
| Reference | Meaning |
|---|---|
| 4912345 | 5/9 Secondary reference Kalmar AC Inc |
| 10-11-666-005 | 5/9 Secondary reference Liberty Ventures Inti, Llc |
| 4912345PC31 | 5/9 Secondary reference Kalmar AC Inc |
| 74912345 | C/1 Advisory reference — outside the item-of-supply concept Kalmar AC Inc |
| 4912340 | D/9 Drawing number reference only Kalmar AC Inc |
| 1011-666-005 | 3/9 Design control — primary reference Marysville Marine Distributors, Inc. |
NSN 2520-01-070-9005 is a Disk,clutch,vehicular, manufactured by Kalmar AC Inc, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-01-070-9005 has 1 manufacturer part number on file: 74987604-1 (Kalmar AC Inc).
1 possible match (shared part number, not a government interchangeability claim): 2520-01-071-0645. Verify interchangeability with system specifications before substitution.
Key specifications for 74987604-1: Disk Material: STEEL; Spline Type: INVOLUTE; Design Type: WET; Outside Diameter: 20.000 INCHES NOMINAL IN. 10 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.