The Piston,accumulator, cataloged under National Stock Number 2990-00-446-0457, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Eaton Corp Dba Eaton Aerospace Jackson. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Piston,accumulator |
| FSC / FSG | 2990 — Miscellaneous Engine Accessories, Nonaircraft (FSG 29) |
| Manufacturers | Eaton Corp Dba Eaton Aerospace Jackson (CAGE 59875) |
| Parameter | Value |
|---|---|
| NSN | 2990-00-446-0457 |
| Primary Part Number | 290419 |
| Item Name | Piston,accumulator |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Eaton Corp Dba Eaton Aerospace Jackson |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 290419 | Eaton Corp Dba Eaton Aerospace Jackson (USA) |
| Reference | Meaning |
|---|---|
| PT200476 | 5/9 Secondary reference Ambac International Corporation Div Ambac International |
| PT200476 | 3/9 Design control — primary reference Automotive Inc Fluid Power Systems Components Div Sub of United Technologies Corp |
NSN 2990-00-446-0457 is a Piston,accumulator, manufactured by Eaton Corp Dba Eaton Aerospace Jackson, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-00-446-0457 has 1 manufacturer part number on file: 290419 (Eaton Corp Dba Eaton Aerospace Jackson).
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.