The Module Assembly,pressure Relief, cataloged under National Stock Number 4820-01-716-2706, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Module Assembly,pressure Relief |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Naval Inventory Control Point Mechanicsburg (CAGE 03950); Naval Sea Systems Command (CAGE 53711) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-716-2706 |
| Primary Part Number | 551-8545100 ASSY-A |
| Item Name | Module Assembly,pressure Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 551-8545100 ASSY-ATR | Naval Inventory Control Point Mechanicsburg (USA) |
| 551-8545100 ASSY-A PRIMARY | Naval Sea Systems Command (USA) |
| 2644-1801 ASSY-ATR | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 2644-1801 ASSY-A | 5/2 Secondary reference U.S. Government activity |
| 8545100 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4820-01-716-2706 is a Module Assembly,pressure Relief, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-716-2706 has 3 manufacturer part numbers on file: 551-8545100 ASSY-ATR (Naval Inventory Control Point Mechanicsburg), 551-8545100 ASSY-A (Naval Sea Systems Command), 2644-1801 ASSY-ATR (Naval Inventory Control Point Mechanicsburg).
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.