The Seat,valve, cataloged under National Stock Number 4820-01-368-9816, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Rix Industries. Government technical data includes 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 4820-01-368-9816 |
| Primary Part Number | 615-A7677 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Rix Industries |
| Status | ACTIVE |
| Body Outside Diameter | 0.285 INCHES NOMINAL IN |
| Body Inside Diameter | 0.185 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING SEAT |
| 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 |
|---|---|
| 615-A7677 PRIMARY | Rix Industries (USA) |
| Reference | Meaning |
|---|---|
| B5210 | D/9 Drawing number reference only Rix Industries |
| B5210 ITEM 9 | 5/9 Secondary reference Rix Industries |
| A7677 | 5/9 Secondary reference Rix Industries |
NSN 4820-01-368-9816 is a Seat,valve, manufactured by Rix Industries, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-368-9816 has 1 manufacturer part number on file: 615-A7677 (Rix Industries).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-369-4784. Verify interchangeability with system specifications before substitution.
Key specifications for 615-A7677: Overall Height: 0.500 INCHES NOMINAL IN; Body Outside Diameter: 0.285 INCHES NOMINAL IN; Body Inside Diameter: 0.185 INCHES NOMINAL IN; Material: STEEL CORROSION RESISTING SEAT. 3 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.