The Valve,check, cataloged under National Stock Number 4820-01-508-3876, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Rix Industries. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Valve,check |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Rix Industries (CAGE 28953); Swagelok Co (CAGE 3T9T9) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-508-3876 |
| Primary Part Number | 615-30283 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Rix Industries |
| Status | ACTIVE |
| 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 |
|---|---|
| 10-35284 ITEM 11 | Rix Industries (USA) |
| SS-CHF8ST-1 | Swagelok Co (USA) |
| 615-30283 PRIMARY | Rix Industries (USA) |
| Reference | Meaning |
|---|---|
| 10-35284 | D/9 Drawing number reference only Rix Industries |
NSN 4820-01-508-3876 is a Valve,check, manufactured by Rix Industries, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-508-3876 has 3 manufacturer part numbers on file: 10-35284 ITEM 11 (Rix Industries), SS-CHF8ST-1 (Swagelok Co), 615-30283 (Rix Industries).
1 possible match (shared part number, not a government interchangeability claim): 1680-01-621-4428. Verify interchangeability with system specifications before substitution.
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.