The Parts Kit,pressure Regulating VA, cataloged under National Stock Number 4820-01-579-3631, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-579-3631 |
| Primary Part Number | 511-4731 |
| Item Name | Parts Kit,pressure Regulating VA |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Furnished Items | 3 O-RINGS, DIAPHRAGM, GASKET, SPRING AND VALVE ASSEMBLY |
| 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 |
|---|---|
| 511-4731 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| V002196 | 5/9 Secondary reference Terex Reedrill Dba Reedrill Texoma Div Terex Mining |
| 511-4731 | 5/9 Secondary reference Terex Reedrill Dba Reedrill Texoma Div Terex Mining |
NSN 4820-01-579-3631 is a Parts Kit,pressure Regulating VA, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-579-3631 has 1 manufacturer part number on file: 511-4731 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 511-4731: Furnished Items: 3 O-RINGS, DIAPHRAGM, GASKET, SPRING AND VALVE ASSEMBLY; End Item Identification: YR:2008; MFR:TEREX; MDL:SD345 VIN:1M09M23; ENG SIZE:CATERPILLAR C-9; FUEL:DIESEL. 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.