The Regulator,oil Level,engine, cataloged under National Stock Number 2990-01-048-5777, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is 2h Energy. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-048-5777 |
| Primary Part Number | LR857 |
| Item Name | Regulator,oil Level,engine |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | 2h Energy |
| Status | ACTIVE |
| General Characteristics Item Description | MAINTAINS IDEAL OIL IN CRANKCASE OIL PAN,FLOAT PRESSURE TYPE REGULATOR WITH LOW LEVEL SHUTDOWN SWITCH,SWITCHES RATED AT 120 VOLT AC 5 AMP,REGULATOR RATED TO CLOSE INLET VALVE 25 FT HEAD PRESSURE,INLET AND OUTLET CONNECTIONS 5/8 IN HOSE 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 |
|---|---|
| LR857 | 2h Energy (FRA) |
| Reference | Meaning |
|---|---|
| LR857 | 3/9 Design control — primary reference Enovation Controls Llc |
| JHP133-719 | 5/9 Secondary reference Hollingsworth John R Co |
NSN 2990-01-048-5777 is a Regulator,oil Level,engine, manufactured by 2h Energy, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-048-5777 has 1 manufacturer part number on file: LR857 (2h Energy).
Key specifications for LR857: General Characteristics Item Description: MAINTAINS IDEAL OIL IN CRANKCASE OIL PAN,FLOAT PRESSURE TYPE REGULATOR WITH LOW LEVEL SHUTDOWN SWITCH,SWITCHES RATED AT 120 VOLT AC 5 AMP,REGULATOR RATED TO CLOSE INLET VALVE 25 FT HEAD PRESSURE,INLET AND OUTLET CONNECTIONS 5/8 IN HOSE 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.