The Valve,check, cataloged under National Stock Number 4820-01-656-0981, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Bosch Rexroth Corporation Div Industrial Hydraulics. Government technical data includes 6 specifications, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-656-0981 |
| Primary Part Number | 055301100301000 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Bosch Rexroth Corporation Div Industrial Hydraulics |
| Status | ACTIVE |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Maximum Operating Temp | 212.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Face to Face Distance | 4.330 INCHES IN |
| Material | ALUMINUM OVERALL |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| R930002401 | Bosch Rexroth Corporation Div Industrial Hydraulics (USA) |
| 055301100301000 PRIMARY | Bosch Rexroth Corporation Div Industrial Hydraulics (USA) |
| VSO-DE/05.53.01-10-03-01 | Bosch Rexroth Corporation Div Industrial Hydraulics (USA) |
NSN 4820-01-656-0981 is a Valve,check, manufactured by Bosch Rexroth Corporation Div Industrial Hydraulics, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-656-0981 has 3 manufacturer part numbers on file: R930002401 (Bosch Rexroth Corporation Div Industrial Hydraulics), 055301100301000 (Bosch Rexroth Corporation Div Industrial Hydraulics), VSO-DE/05.53.01-10-03-01 (Bosch Rexroth Corporation Div Industrial Hydraulics).
Key specifications for 055301100301000: Style Designator: STRAIGHT THRU; Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Maximum Operating Temp: 212.0 FAHRENHEIT SINGLE RESPONSE DEGF; Face to Face Distance: 4.330 INCHES IN. 6 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.