The Valve,check, cataloged under National Stock Number 4820-01-341-4805, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is The W.w. Williams Company, Llc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 4820-01-341-4805 |
| Primary Part Number | 23015202 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | The W.w. Williams Company, Llc |
| Status | ACTIVE |
| Mounting Facility | BRACKET(S) |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| 2GK818 | Oshkosh Defense Llc (USA) |
| 23015202 PRIMARY | The W.w. Williams Company, Llc (USA) |
| 23015203 ASSY 23015202 | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| Reference | Meaning |
|---|---|
| 23015202 | 3/9 Design control — primary reference Allison Transmission Inc Dba Allison Transmission, Inc |
| 2GK818 | 5/9 Secondary reference Oshkosh Corp |
NSN 4820-01-341-4805 is a Valve,check, manufactured by The W.w. Williams Company, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-341-4805 has 3 manufacturer part numbers on file: 2GK818 (Oshkosh Defense Llc), 23015202 (The W.w. Williams Company, Llc), 23015203 ASSY 23015202 (Allison Transmission Inc Dba Allison Transmission, Inc).
Key specifications for 23015202: Mounting Facility: BRACKET(S); End Item Identification: 2320-01-304-2277 PLS (PALLETIZED LOADING SYSTEM); Valve Operation Method: AUTOMATIC. 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.
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.