The Piston,governor, cataloged under National Stock Number 2990-01-209-9634, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Fairbanks Morse, Llc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-209-9634 |
| Primary Part Number | 1100G221 |
| Item Name | Piston,governor |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Fairbanks Morse, Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| 1100G221 PRIMARY | Fairbanks Morse, Llc (USA) |
| 1100G469 ITEM 63 | Fairbanks Morse, Llc (USA) |
| Reference | Meaning |
|---|---|
| 1100G469 ITEM 63 | 5/9 Secondary reference Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco |
| 1100G221 | 3/9 Design control — primary reference Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco |
| 1100G221 | C/1 Advisory reference — outside the item-of-supply concept Regulateurs Europa Limited Div Regulateurs Europa |
| 1100G469 | D/9 Drawing number reference only Regulateurs Europa Limited Div Regulateurs Europa |
NSN 2990-01-209-9634 is a Piston,governor, manufactured by Fairbanks Morse, Llc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-209-9634 has 2 manufacturer part numbers on file: 1100G221 (Fairbanks Morse, Llc), 1100G469 ITEM 63 (Fairbanks Morse, Llc).
3 possible matches (shared part number, not a government interchangeability claim): 2990-01-209-9635, 2990-01-210-0384, 2990-01-210-2753. Verify interchangeability with system specifications before substitution.
Key specifications for 1100G221: End Item Identification: 2990-00-126-9391. 0 specifications are 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.