The Fork,governor, cataloged under National Stock Number 2990-00-089-7775, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Rolls-Royce Solutions America 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-00-089-7775 |
| Primary Part Number | 5132639 |
| Item Name | Fork,governor |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Rolls-Royce Solutions America Inc |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,FED STD 66,AISI OR SAE 1117,@DROP FORGED,CAM END ONLY CARBURIZED AND CASEHARDEN TO 0.020 IN. MIN 0.030 IN. MAX DEPTH,METALLIC HARDNESS RATING ROCKWELL SUPERFICIAL 45N-64 MIN,0.776 IN. MIN 0.796 IN. MAX PARALLEL SURFACED,FORK HUB END DRILL BROACH HARDEN BURNISH TO 0.4992 IN. MIN 0.5005 IN. MAX ID 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 |
|---|---|
| 5132639 PRIMARY | Rolls-Royce Solutions America Inc (USA) |
NSN 2990-00-089-7775 is a Fork,governor, manufactured by Rolls-Royce Solutions America Inc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-00-089-7775 has 1 manufacturer part number on file: 5132639 (Rolls-Royce Solutions America Inc).
Key specifications for 5132639: General Characteristics Item Description: STEEL,FED STD 66,AISI OR SAE 1117,@DROP FORGED,CAM END ONLY CARBURIZED AND CASEHARDEN TO 0.020 IN. MIN 0.030 IN. MAX DEPTH,METALLIC HARDNESS RATING ROCKWELL SUPERFICIAL 45N-64 MIN,0.776 IN. MIN 0.796 IN. MAX PARALLEL SURFACED,FORK HUB END DRILL BROACH HARDEN BURNISH TO 0.4992 IN. MIN 0.5005 IN. MAX ID IN; End Item Identification: DDE DIVISION GMC MODEL 6V-53 V. 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.