The Valve,check, cataloged under National Stock Number 4820-01-052-9917, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Avox Systems Inc Dba Avox Systems Inc. Government technical data includes 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-052-9917 |
| Primary Part Number | 800014-00 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Avox Systems Inc Dba Avox Systems Inc |
| Status | ACTIVE |
| Connection Style | PLAIN (TUBE) FIRST END |
| Mounting Position | HORIZONTAL |
| Supplementary Features | FLOW CONTROL DEVICE: PLUG |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Style Designator | STRAIGHT THRU |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES FIRST END IN |
| Material | STEEL 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 |
|---|---|
| 800014-00 PRIMARY | Avox Systems Inc Dba Avox Systems Inc (USA) |
NSN 4820-01-052-9917 is a Valve,check, manufactured by Avox Systems Inc Dba Avox Systems Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-052-9917 has 1 manufacturer part number on file: 800014-00 (Avox Systems Inc Dba Avox Systems Inc).
Key specifications for 800014-00: Connection Style: PLAIN (TUBE) FIRST END; Mounting Position: HORIZONTAL; Supplementary Features: FLOW CONTROL DEVICE: PLUG; Connection Type: UNTHREADED INTERNAL TUBE FIRST END. 8 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.