The Weight Governor, cataloged under National Stock Number 2990-01-099-9664, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Hatz Diesel of 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 2990-01-099-9664 |
| Primary Part Number | 03398400 |
| Item Name | Weight Governor |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Hatz Diesel of America Inc |
| Status | ACTIVE |
| General Characteristics Item Description | O/A WIDTH 99.0 MM; MOUNTING PIN ON EACH END 12.0 MM LONG MM |
| 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 |
|---|---|
| 03398400 PRIMARY | Hatz Diesel of America Inc (USA) |
| Reference | Meaning |
|---|---|
| 82128 | 5/9 Secondary reference Davey Compressor Co Div of Keco Industries Inc |
NSN 2990-01-099-9664 is a Weight Governor, manufactured by Hatz Diesel of America Inc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-099-9664 has 1 manufacturer part number on file: 03398400 (Hatz Diesel of America Inc).
2 possible matches (shared part number, not a government interchangeability claim): 6115-01-277-4512, 5310-01-494-9448. Verify interchangeability with system specifications before substitution.
Key specifications for 03398400: General Characteristics Item Description: O/A WIDTH 99.0 MM; MOUNTING PIN ON EACH END 12.0 MM LONG MM. 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.