The Cylinder,accumulator,governor, cataloged under National Stock Number 2990-01-075-1097, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Woodward, Inc.. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2990-01-075-1097 |
| Primary Part Number | 9987-961PC199 |
| Item Name | Cylinder,accumulator,governor |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Woodward, Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,CASEHARDENED,1.183 IN. OD;FLANGE,1.658 IN. DIA,0.875 IN. ID,0.153 IN. THK,2.175 IN. DEEP;BODY W/FOUR HOLES,0.250 IN. DIA,EQUALLY SPACED;MACHINE FINISH ID AND OD;2.470 IN. O/A LG IN |
| 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 |
|---|---|
| 9987-961PC199 | Woodward, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 363858 | 3/9 Design control — primary reference Woodward, Inc. Div Fuel Systems and Controls |
| 9987-961 | D/9 Drawing number reference only Woodward, Inc. |
NSN 2990-01-075-1097 is a Cylinder,accumulator,governor, manufactured by Woodward, Inc., classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-075-1097 has 1 manufacturer part number on file: 9987-961PC199 (Woodward, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-375-6451. Verify interchangeability with system specifications before substitution.
Key specifications for 9987-961PC199: General Characteristics Item Description: STEEL,CASEHARDENED,1.183 IN. OD;FLANGE,1.658 IN. DIA,0.875 IN. ID,0.153 IN. THK,2.175 IN. DEEP;BODY W/FOUR HOLES,0.250 IN. DIA,EQUALLY SPACED;MACHINE FINISH ID AND OD;2.470 IN. O/A LG IN. 1 specification is documented in the U.S. Government catalog.
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.