The Flyweight,governor, cataloged under National Stock Number 2990-01-190-3591, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-190-3591 |
| Item Name | Flyweight,governor |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Status | ACTIVE |
| General Characteristics Item Description | HARDEN TO 60 ROCKWELL HARDNESS RC SCHLE.MIN,CARBURIZE 0.062 IN. MIN DEPTH;1/16 IN. BY 45 DEG CHAMFER BOTH SIDES AND BOTH ENDS;CENTER SLOTTED 2.500 IN. W;TWO MTG HOLES,1/2-20 TAP DRILL 0.880 IN. DEEP,SPACED 3.500 IN. C TO C OF HOLES;1.240 IN. H;HALF MOON SHAPE IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 16103304 | C/1 Advisory reference — outside the item-of-supply concept Fairbanks Morse, Llc |
| 1620197 PIECE 1 | C/1 Advisory reference — outside the item-of-supply concept Fairbanks Morse, Llc |
| 16103304 | 3/9 Design control — primary reference U.S. Government activity |
| 1620197 PIECE 1 | 5/9 Secondary reference U.S. Government activity |
NSN 2990-01-190-3591 is a Flyweight,governor, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
Key specifications for 2990-01-190-3591: General Characteristics Item Description: HARDEN TO 60 ROCKWELL HARDNESS RC SCHLE.MIN,CARBURIZE 0.062 IN. MIN DEPTH;1/16 IN. BY 45 DEG CHAMFER BOTH SIDES AND BOTH ENDS;CENTER SLOTTED 2.500 IN. W;TWO MTG HOLES,1/2-20 TAP DRILL 0.880 IN. DEEP,SPACED 3.500 IN. C TO C OF HOLES;1.240 IN. H;HALF MOON SHAPE IN; End Item Identification: COLT INDUSTRIES OPERATING CORP,DIESEL ENGINE MODEL 38ND8 1-8. 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.