The Valve,stop-Check, cataloged under National Stock Number 4820-01-545-2325, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Huntington Ingalls Inc Div Newport News Shipbuilding. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-545-2325 |
| Primary Part Number | 1605099 |
| Item Name | Valve,stop-Check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Huntington Ingalls Inc Div Newport News Shipbuilding |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 1605099 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 803-2177140-32AF MOD VELANL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| P2-47946-G01,ITEM006L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| P2-47946-G01 ITEM 06L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| P012-335590-G01L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| P2-47946-G01/B09-3084K-11MSL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| B09-3084K-11MSL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 803-2177140-32AF MOD VELAN | 3/1 Design control — primary reference U.S. Government activity |
| P2-47946-G01 | 5/1 Secondary reference Velan Valve Corp. |
| B09-3084K-11MS | 5/1 Secondary reference Velan Valve Corp. |
| P2-47946-G01,ITEM006 | 5/1 Secondary reference Velan Valve Corp. |
| P2-47946-G01/B09-3084K-11MS | 5/1 Secondary reference Velan Valve Corp. |
| P2-47946-G01 ITEM 06 | 5/1 Secondary reference Velan Valve Corp. |
| P012-335590-G01 | 5/1 Secondary reference Velan Valve Corp. |
NSN 4820-01-545-2325 is a Valve,stop-Check, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-545-2325 has 7 manufacturer part numbers on file: 1605099 (Huntington Ingalls Inc Div Newport News Shipbuilding), 803-2177140-32AF MOD VELANL1 (Naval Inventory Control Point Mechanicsburg), P2-47946-G01,ITEM006L1 (Naval Inventory Control Point Mechanicsburg), P2-47946-G01 ITEM 06L1 (Naval Inventory Control Point Mechanicsburg), P012-335590-G01L1 (Naval Inventory Control Point Mechanicsburg) and 2 more.
Key specifications for 1605099: Criticality Code Justification: ZZZY; End Item Identification: VALVE,STOP CHECK 2.50IPS 1977PSI STLSSTL BTWLD; Reference Number Differentiating Characteristics: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS. 2 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.
NSN 4820-01-545-2325 has DEMIL Code B. 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.