The Governor,diesel Engine, cataloged under National Stock Number 2990-01-174-6849, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Delco Diesel Services Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-174-6849 |
| Primary Part Number | ESD-5111 |
| Item Name | Governor,diesel Engine |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Delco Diesel Services Inc |
| 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 |
|---|---|
| ECD-5111B | Ambac International Corporation Div Ambac International (USA) |
| ESD-5111 PRIMARY | Delco Diesel Services Inc (USA) |
| Reference | Meaning |
|---|---|
| ECD 67-5111 | 5/9 Secondary reference Ambac International Corporation Div Ambac International |
| ECD 67-2111 | 5/9 Secondary reference Ambac International Corporation Div Ambac International |
NSN 2990-01-174-6849 is a Governor,diesel Engine, manufactured by Delco Diesel Services Inc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-174-6849 has 2 manufacturer part numbers on file: ECD-5111B (Ambac International Corporation Div Ambac International), ESD-5111 (Delco Diesel Services Inc).
1 possible match (shared part number, not a government interchangeability claim): 2990-01-373-6242. Verify interchangeability with system specifications before substitution.
Key specifications for ESD-5111: Special Features: SOLID STATE CIRCUITS;USED WITH MAGNETIC SPEED SENSOR OR OTHER SUITABLE SIGNAL SOURCE;SPEED RANGE IS 6 TO 1;ISOSHRONOUS OR DROOP GOVERNING MODE;OPERATING FREQUENCY RANGE 1K TO 6KZ;10 TO 40 VDC;5.750 IN. LG;5.500 IN.W;0.875 IN.THICK;1.8 LB WEIGHT;ANY POSITION MTG;REFERENCE DATA & LITERATURE:01843/ECO 672111; REFERENCE DATA, 6980.3 CHG 276, CHAP 242 DIRECTIVE AF P VDC; End Item Identification: EG, UPGRADE TO SOLID STATE FROM HYDRAULIC CONTROL, TYPICAL USED IN 18.75 KVA THRU 37.5 KVA. 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.