The Valve,stop-Check, cataloged under National Stock Number 4820-01-643-1663, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Kipper Tool Company Dba Kipper Management Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-643-1663 |
| Primary Part Number | PLE 556 |
| Item Name | Valve,stop-Check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Kipper Tool Company Dba Kipper Management Inc |
| 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 |
|---|---|
| PLE 556 PRIMARY | Kipper Tool Company Dba Kipper Management Inc (USA) |
NSN 4820-01-643-1663 is a Valve,stop-Check, manufactured by Kipper Tool Company Dba Kipper Management Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-643-1663 has 1 manufacturer part number on file: PLE 556 (Kipper Tool Company Dba Kipper Management Inc).
Key specifications for PLE 556: Part Name Assigned by Controlling Agency: CONNECTION VALVE; End Item Identification: FIRE CONTROL PURGING KIT - 4931-00-065-1110. 0 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.
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.