The Retainer,seat,valve, cataloged under National Stock Number 4820-01-130-1936, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-130-1936 |
| Item Name | Retainer,seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Outside Diameter | 2.250 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 508-4674155 | D/9 Drawing number reference only U.S. Government activity |
| 508-4674155 ITE | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 87553-2004 | D/9 Drawing number reference only U.S. Government activity |
| 87553-2004 ITEM 4 | 5/2 Secondary reference U.S. Government activity |
| 508-4674155 ITEM 4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-130-1936 is a Retainer,seat,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-130-1936: Outside Diameter: 2.250 INCHES NOMINAL IN; Overall Length: 3.536 INCHES NOMINAL IN; Material: COPPER ALLOY. 2 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.