The Valve,check, cataloged under National Stock Number 4820-01-368-9644, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Rix Industries. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-368-9644 |
| Primary Part Number | A615-B5210 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Rix Industries |
| Status | ACTIVE |
| Mounting Position | HORIZONTAL |
| Material | STEEL CORROSION RESISTING SEAT |
| Material | STEEL COMP 303 BODY |
| 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 |
|---|---|
| A615-B5210 PRIMARY | Rix Industries (USA) |
| Reference | Meaning |
|---|---|
| B5210 | 5/9 Secondary reference Rix Industries |
NSN 4820-01-368-9644 is a Valve,check, manufactured by Rix Industries, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-368-9644 has 1 manufacturer part number on file: A615-B5210 (Rix Industries).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-368-9816, 4820-01-369-4784. Verify interchangeability with system specifications before substitution.
Key specifications for A615-B5210: Mounting Position: HORIZONTAL; Special Features: CARTRIDGE TYPE; Material: STEEL CORROSION RESISTING SEAT; Material: STEEL COMP 303 BODY. 4 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.