The Piston,valve, cataloged under National Stock Number 4820-01-418-4054, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Sealco Air Controls Inc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-418-4054 |
| Primary Part Number | 0167 |
| Item Name | Piston,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Sealco Air Controls Inc |
| Status | ACTIVE |
| Valve Type for Which Designed | PRESSURE REDUCING |
| Valve Model Number for Which Designed | 110315 |
| Valve Design Control Activity | 10125 |
| 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 |
|---|---|
| 0167 PRIMARY | Sealco Air Controls Inc (USA) |
NSN 4820-01-418-4054 is a Piston,valve, manufactured by Sealco Air Controls Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-418-4054 has 1 manufacturer part number on file: 0167 (Sealco Air Controls Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5999-01-444-5854, 4610-01-478-2423. Verify interchangeability with system specifications before substitution.
Key specifications for 0167: Valve Type for Which Designed: PRESSURE REDUCING; Valve Model Number for Which Designed: 110315; Valve Design Control Activity: 10125; End Item Identification: 3895-01-344-5480, TANKLESS TYPE LIQUID BITUMINOUS MATERIAL DISTRIBUTOR. 3 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.