The Valve,check, cataloged under National Stock Number 4820-00-472-4223, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 19 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-472-4223 |
| Primary Part Number | 10160871 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 0.250 INCHES FIRST END IN |
| Nominal Pipe Size Accommodated | 0.250 INCHES SECOND END IN |
| Surface Treatment Document and Classification | MIL-A-8625,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE |
| Connection Style | PLAIN, OPTIONAL END (PIPE) FIRST END |
| Connection Type | THREADED INTERNAL PIPE FIRST END |
| Connection Type | THREADED EXTERNAL PIPE SECOND END |
| Style Designator | STRAIGHT THRU |
| Thread Direction | RIGHT-HAND SECOND END |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.250 INCHES FIRST END IN |
| Nominal Thread Size | 0.250 INCHES SECOND END IN |
| Disk Loading Method | SPRING |
| Surface Treatment | ANODIZE |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Thread Quantity Per Inch | 18 FIRST END |
| Thread Quantity Per Inch | 18 SECOND END |
| Thread Series Designator | NPT SECOND END |
| Thread Series Designator | NPT FIRST END |
| 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 |
|---|---|
| 10160871 | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| 481 1-4D1 | 3/9 Design control — primary reference U.S. Government activity |
NSN 4820-00-472-4223 is a Valve,check, manufactured by Us Army Aviation and Missile Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-472-4223 has 1 manufacturer part number on file: 10160871 (Us Army Aviation and Missile Command).
Key specifications for 10160871: Nominal Pipe Size Accommodated: 0.250 INCHES FIRST END IN; Nominal Pipe Size Accommodated: 0.250 INCHES SECOND END IN; Surface Treatment Document and Classification: MIL-A-8625,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE; Connection Style: PLAIN, OPTIONAL END (PIPE) FIRST END. 19 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.