The Control Assembly, cataloged under National Stock Number 2990-00-874-3232, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Wisconsin Motors, Llc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2990-00-874-3232 |
| Primary Part Number | TT74D |
| Item Name | Control Assembly |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Wisconsin Motors, Llc |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,3.625 IN.O/A LG,2.500 IN.W,2.000 IN.THK 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 |
|---|---|
| TT74D9 | Wisconsin Motors, Llc (USA) |
| TTM74D | Wisconsin Motors, Llc (USA) |
| TT74D PRIMARY | Wisconsin Motors, Llc (USA) |
| Reference | Meaning |
|---|---|
| 18760AS | 5/2 Secondary reference U.S. Government activity |
| JHP33-139 | 5/9 Secondary reference Hollingsworth John R Co |
NSN 2990-00-874-3232 is a Control Assembly, manufactured by Wisconsin Motors, Llc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-00-874-3232 has 3 manufacturer part numbers on file: TT74D9 (Wisconsin Motors, Llc), TTM74D (Wisconsin Motors, Llc), TT74D (Wisconsin Motors, Llc).
Key specifications for TT74D: General Characteristics Item Description: STEEL,3.625 IN.O/A LG,2.500 IN.W,2.000 IN.THK 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.