The Flyweight Assembly, cataloged under National Stock Number 2990-01-190-3590, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Fairbanks Morse, Llc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 2990-01-190-3590 |
| Primary Part Number | 16201997 |
| Item Name | Flyweight Assembly |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Fairbanks Morse, Llc |
| Status | ACTIVE |
| General Characteristics Item Description | W/DOWELS;TWO HOLES,0.188 IN. DIA,REAMED 1.440 IN. DEEP;1.000 IN. 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 |
|---|---|
| 16201997 PRIMARY | Fairbanks Morse, Llc (USA) |
| 16300740 PIECE 4 | Fairbanks Morse, Llc (USA) |
| Reference | Meaning |
|---|---|
| 16201997 | 3/9 Design control — primary reference U.S. Government activity |
| 16300740 PIECE 4 | 5/9 Secondary reference U.S. Government activity |
NSN 2990-01-190-3590 is a Flyweight Assembly, manufactured by Fairbanks Morse, Llc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-190-3590 has 2 manufacturer part numbers on file: 16201997 (Fairbanks Morse, Llc), 16300740 PIECE 4 (Fairbanks Morse, Llc).
Key specifications for 16201997: General Characteristics Item Description: W/DOWELS;TWO HOLES,0.188 IN. DIA,REAMED 1.440 IN. DEEP;1.000 IN. 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.