The Seat,valve, cataloged under National Stock Number 4820-01-633-6570, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Seat,valve |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Naval Inventory Control Point Mechanicsburg (CAGE 03950) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-633-6570 |
| Primary Part Number | 7383858-B47474 ITEM 11-7D0 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 7383858-B47474 ITEM 11-7D0 | Naval Inventory Control Point Mechanicsburg (USA) |
| H547-0001-B47474 ITEM 11-7D0 | Naval Inventory Control Point Mechanicsburg (USA) |
| B47474 ITEM 07D0 | Naval Inventory Control Point Mechanicsburg (USA) |
| 7550478-B47474-11-7D0 | Naval Inventory Control Point Mechanicsburg (USA) |
| 3423-1016-1D0 | Naval Inventory Control Point Mechanicsburg (USA) |
| G547-0002-B47474-11-7D0 | Naval Inventory Control Point Mechanicsburg (USA) |
| B47474-11-7D0 | Naval Inventory Control Point Mechanicsburg (USA) |
| 3423-1001 ITEM 07D0 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| H547-0001-B47474 ITEM 11-7 | 5/1 Secondary reference U.S. Government activity |
| 3423-1016-1 | 5/1 Secondary reference Mission Systems Orchard Park Inc |
| 7550478-B47474-11-7 | 5/1 Secondary reference Naval Sea Systems Command |
| B47474 ITEM 07 | 3/1 Design control — primary reference Mission Systems Orchard Park Inc |
| G547-0002-B47474-11-7 | 5/1 Secondary reference U.S. Government activity |
| 3423-1001 ITEM 07 | 5/1 Secondary reference Carleton Technologies Inc Div Tampa Facility |
| 7383858-B47474 ITEM 11-7 | 5/1 Secondary reference Naval Sea Systems Command |
| B47474-11-7 | 5/1 Secondary reference Mission Systems Orchard Park Inc |
NSN 4820-01-633-6570 is a Seat,valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-633-6570 has 8 manufacturer part numbers on file: 7383858-B47474 ITEM 11-7D0 (Naval Inventory Control Point Mechanicsburg), H547-0001-B47474 ITEM 11-7D0 (Naval Inventory Control Point Mechanicsburg), B47474 ITEM 07D0 (Naval Inventory Control Point Mechanicsburg), 7550478-B47474-11-7D0 (Naval Inventory Control Point Mechanicsburg), 3423-1016-1D0 (Naval Inventory Control Point Mechanicsburg) and 3 more.
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.