The Valve,check, cataloged under National Stock Number 4820-01-072-8117, 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 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-072-8117 |
| Primary Part Number | P17547-001-01 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Renewable Seat Ring Type | RETAINING SCREW |
| Connection Style | PLAIN, OPTIONAL END (PIPE) FIRST END |
| Mounting Position | HORIZONTAL |
| Connection Type | THREADED INTERNAL PIPE FIRST END |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Size | 1.000 INCHES IN |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 1.000 INCHES FIRST END IN |
| Disk Loading Method | SPRING |
| Face to Face Distance | 3.780 INCHES IN |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| 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 |
|---|---|
| P17547-001-01 PRIMARY | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| 3304043-1 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-072-8117 is a Valve,check, manufactured by Us Army Aviation and Missile Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-072-8117 has 1 manufacturer part number on file: P17547-001-01 (Us Army Aviation and Missile Command).
Key specifications for P17547-001-01: Flow Control Device: POPPET; Renewable Seat Ring Type: RETAINING SCREW; Connection Style: PLAIN, OPTIONAL END (PIPE) FIRST END; Mounting Position: HORIZONTAL. 15 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.