The Valve,check, cataloged under National Stock Number 4820-01-216-7462, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Raytheon Company Div Rmd Strategic. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-216-7462 |
| Primary Part Number | 71-404 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Raytheon Company Div Rmd Strategic |
| Status | ACTIVE |
| Flow Control Device | PISTON |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Supplementary Features | EQUIPPED WITH 241 POLYTETRAFLUOROETHYLENE DISC |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.375 INCHES ALL ENDS IN |
| Disk Loading Method | SPRING |
| Material | COPPER ALLOY BODY |
| Thread Series Designator | NPT ALL ENDS |
| 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 |
NSN 4820-01-216-7462 is a Valve,check, manufactured by Raytheon Company Div Rmd Strategic, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-216-7462 has 2 manufacturer part numbers on file: 71-404 (Raytheon Company Div Rmd Strategic), 5371-404 (Raytheon Company Div Rmd Strategic).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-662-8445, 5365-01-664-3325. Verify interchangeability with system specifications before substitution.
Key specifications for 71-404: Flow Control Device: PISTON; Connection Style: PLAIN (PIPE) ALL ENDS; Mounting Position: HORIZONTAL OR VERTICAL; Supplementary Features: EQUIPPED WITH 241 POLYTETRAFLUOROETHYLENE DISC. 12 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.