The Power Takeoff,engine, cataloged under National Stock Number 2990-01-255-5508, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Power Takeoff,engine |
| FSC / FSG | 2990 — Miscellaneous Engine Accessories, Nonaircraft (FSG 29) |
| Manufacturers | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (CAGE 61208) |
| Parameter | Value |
|---|---|
| NSN | 2990-01-255-5508 |
| Primary Part Number | 0431026 |
| Item Name | Power Takeoff,engine |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 0431026 PRIMARY | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA) |
| Reference | Meaning |
|---|---|
| WC328-A | 5/9 Secondary reference Wisconsin Motors, Llc |
| 4-31026 | 5/9 Secondary reference Twin Disc Southeast, Inc. Dba Twin Disc |
| 431026 | 5/9 Secondary reference Channel Seafoods Inc |
| PT-A-4856 | 5/9 Secondary reference Rockford Powertrain Inc Div Powertrain Rockford, Inc. |
| 411253 | 5/9 Secondary reference Channel Seafoods Inc |
NSN 2990-01-255-5508 is a Power Takeoff,engine, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-255-5508 has 1 manufacturer part number on file: 0431026 (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic).
2 possible matches (shared part number, not a government interchangeability claim): 5330-01-320-7181, 6685-01-517-8353. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). 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.