The Seat,valve, cataloged under National Stock Number 4820-01-435-2240, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-435-2240 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Style Designator | PLAIN |
| Material | RUBBER BUNA N SEAT |
| Seating Surface Shape | FLAT |
| 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 |
|---|---|
| 980-0040 REF 5 | C/1 Advisory reference — outside the item-of-supply concept Dover Resources, Inc. Div Norriseal |
| 980-0040 REF 5 | 5/9 Secondary reference U.S. Government activity |
| 52730A015 | C/1 Advisory reference — outside the item-of-supply concept Dover Resources, Inc. Div Norriseal |
| 52730A015 | 3/9 Design control — primary reference U.S. Government activity |
NSN 4820-01-435-2240 is a Seat,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-435-2240: Style Designator: PLAIN; Special Features: MODEL 2000 W/2RM OPERATOR; VALVE SIZE 10IN W; End Item Identification: STRATEGIC SEALIFT CONVERSION SHIPS CLASS; Material: RUBBER BUNA N 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.