The Cap,valve, cataloged under National Stock Number 4820-01-643-2879, 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Cap,valve |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Naval Inventory Control Point Mechanicsburg (CAGE 03950) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-643-2879 |
| Primary Part Number | 7550477-G5254101-037D4 |
| Item Name | Cap,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 |
|---|---|
| 7550477-G5254101-037D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| G525-4101 PN 37D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| G547-0001-G5254101-037D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| G5254101-037D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| 37-37-7854AD4 | Naval Inventory Control Point Mechanicsburg (USA) |
| 7384907 PN 37D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 7550477-G5254101-037 | 5/1 Secondary reference Naval Sea Systems Command |
| 37-37-7854A | 5/1 Secondary reference U.S. Government activity |
| G5254101-037 | 5/1 Secondary reference U.S. Government activity |
| G547-0001-G5254101-037 | 5/1 Secondary reference U.S. Government activity |
| G525-4101 PN 37 | 5/1 Secondary reference U.S. Government activity |
| 7384907 PN 37 | 3/1 Design control — primary reference Naval Sea Systems Command |
NSN 4820-01-643-2879 is a Cap,valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-643-2879 has 6 manufacturer part numbers on file: 7550477-G5254101-037D4 (Naval Inventory Control Point Mechanicsburg), G525-4101 PN 37D4 (Naval Inventory Control Point Mechanicsburg), G547-0001-G5254101-037D4 (Naval Inventory Control Point Mechanicsburg), G5254101-037D4 (Naval Inventory Control Point Mechanicsburg), 37-37-7854AD4 (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.
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.