The Retainer,seat,valve, cataloged under National Stock Number 4820-01-633-8941, 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 6 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Retainer,seat,valve |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Naval Inventory Control Point Mechanicsburg (CAGE 03950) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-633-8941 |
| Primary Part Number | G547-0002-264140501-027CP |
| Item Name | Retainer,seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| G547-0002-264140501-027CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 7550478-264140501-010CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 2641-405-01 ITEM 27CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 2641-809-40 ITEM 10CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 7550478-264140501-027CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 264140501-027CP | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 7108936 ITEM 10CP | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 7550478-264140501-027 | 3/1 Design control — primary reference Naval Sea Systems Command |
| 264140501-027 | 5/1 Secondary reference U.S. Government activity |
| 2641-809-40 ITEM 10 | 5/1 Secondary reference U.S. Government activity |
| G547-0002-264140501-027 | 5/1 Secondary reference U.S. Government activity |
| 7108936 ITEM 10 | 5/1 Secondary reference U.S. Government activity |
| 2641-405-01 ITEM 27 | 5/1 Secondary reference U.S. Government activity |
| 7550478-264140501-010 | 5/1 Secondary reference Naval Sea Systems Command |
NSN 4820-01-633-8941 is a Retainer,seat,valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-633-8941 has 6 manufacturer part numbers on file: G547-0002-264140501-027CP (Naval Inventory Control Point Mechanicsburg), 7550478-264140501-010CP (Naval Inventory Control Point Mechanicsburg), 2641-405-01 ITEM 27CP (Naval Inventory Control Point Mechanicsburg), 2641-809-40 ITEM 10CP (Naval Inventory Control Point Mechanicsburg), 7550478-264140501-027CP (Naval Inventory Control Point Mechanicsburg) and 1 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.
NSN 4820-01-633-8941 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.