The Pressure Plate Assembly,clutch, cataloged under National Stock Number 2520-01-024-3904, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2520-01-024-3904 |
| Primary Part Number | X227666 |
| Item Name | Pressure Plate Assembly,clutch |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic |
| 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 |
|---|---|
| X227666 PRIMARY | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA) |
| Reference | Meaning |
|---|---|
| 627995C91 | 5/2 Secondary reference U.S. Government activity |
NSN 2520-01-024-3904 is a Pressure Plate Assembly,clutch, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-01-024-3904 has 1 manufacturer part number on file: X227666 (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic).
Key specifications for X227666: Special Features: C/O 1 ROLLER BEARING P/N MA185A;1 EXTERNAL SNAP RING P/N A2622-5;6 THRUST WASHERS P/N 202167;1 ROLLER BEARING P/N MA543;2 THRUST WASHERS P/N 202167B;2 EXTERNAL SNAP RINGS P/N A2622AE;1 CLUTCH HUB P/N 228203;2 PISTON RINGS P/N M1904AW;2 EXTERNAL SNAP RINGS P/N A2622AE;1 DOWELL PIN P/N A2711AP;2 CLUTCH PISTONS P/N 227245;2 SEALING RINGS P/N M2074CR;1 PISTON HOUSING ASSY P/N X218850L. 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.