The Valve,plug, cataloged under National Stock Number 4820-01-131-3685, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Wheeler Fleet Solutions, Co.. The record lists 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Valve,plug |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Kovatch Corp. (CAGE 59556); Wheeler Fleet Solutions, Co. (CAGE 55683); Philadelphia Valve Co (CAGE 77254) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-131-3685 |
| Primary Part Number | 1949-AA-6091 MOD |
| Item Name | Valve,plug |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Wheeler Fleet Solutions, Co. |
| 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 |
|---|---|
| K500-1082 | Kovatch Corp. (USA) |
| 1949-AA-6091 MOD PRIMARY | Wheeler Fleet Solutions, Co. (USA) |
| AA-6091 PRIMARY | Kovatch Corp. (USA) |
| B-6037 | Philadelphia Valve Co (USA) |
| Reference | Meaning |
|---|---|
| 1949-AA-6091 | 5/9 Secondary reference Wheeler Fleet Solutions, Co. |
| AA-6091 | 5/9 Secondary reference Philadelphia Valve Co |
NSN 4820-01-131-3685 is a Valve,plug, manufactured by Wheeler Fleet Solutions, Co., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-131-3685 has 4 manufacturer part numbers on file: K500-1082 (Kovatch Corp.), 1949-AA-6091 MOD (Wheeler Fleet Solutions, Co.), AA-6091 (Kovatch Corp.), B-6037 (Philadelphia Valve Co).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-541-0324. Verify interchangeability with system specifications before substitution.
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.