The Seat,valve, cataloged under National Stock Number 4820-01-348-1358, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Atlas Incinerators A/s. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Seat,valve |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Atlas Incinerators A/s (CAGE R2394); Waukesha Bearings Corporation (CAGE 07332) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-348-1358 |
| Primary Part Number | 991407006004 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Atlas Incinerators A/s |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 991407006004 | Atlas Incinerators A/s (DNK) |
| 991407006004 | Waukesha Bearings Corporation (USA) |
| Reference | Meaning |
|---|---|
| ITEM 4 | C/1 Advisory reference — outside the item-of-supply concept Waukesha Foundry Inc |
| 991407006004 | 3/9 Design control — primary reference Young and Cunningham America Inc a Joint Venture |
| 2244 ITEM 4 | 5/9 Secondary reference Waukesha Foundry Inc |
NSN 4820-01-348-1358 is a Seat,valve, manufactured by Atlas Incinerators A/s, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-348-1358 has 2 manufacturer part numbers on file: 991407006004 (Atlas Incinerators A/s), 991407006004 (Waukesha Bearings Corporation).
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.