The Valve,automatic Stop, cataloged under National Stock Number 4820-01-149-5641, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 4820-01-149-5641 |
| Primary Part Number | 2870-0001-1 PART PL2870-0001C1 |
| Item Name | Valve,automatic Stop |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Reference Number Differentiating Characteristics | QUALITY CONTROLLED IAW NAVY LEVEL 1 ASSURANCE GUIDE,CLEANED IAW MIL-C-52211 |
| 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 |
|---|---|
| 2870-0001-1 PART PL2870-0001C1 | Naval Inventory Control Point Mechanicsburg (USA) |
| PL2870-0001 PART 2870-0001-1C1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 2870-0001-1 PART PL2870-0001 | 3/1 Design control — primary reference Mission Systems Orchard Park Inc |
| PL2870-0001 PART 2870-0001-1 | 5/1 Secondary reference Mission Systems Orchard Park Inc |
NSN 4820-01-149-5641 is a Valve,automatic Stop, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-149-5641 has 2 manufacturer part numbers on file: 2870-0001-1 PART PL2870-0001C1 (Naval Inventory Control Point Mechanicsburg), PL2870-0001 PART 2870-0001-1C1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 2870-0001-1 PART PL2870-0001C1: Reference Number Differentiating Characteristics: QUALITY CONTROLLED IAW NAVY LEVEL 1 ASSURANCE GUIDE,CLEANED IAW MIL-C-52211. 1 specification is 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 4820-01-149-5641 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.