The Piston,valve, cataloged under National Stock Number 4820-01-702-4516, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Ammcon Corp.. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Piston,valve |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Ammcon Corp. (CAGE 6W889) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-702-4516 |
| Primary Part Number | 7508176 |
| Item Name | Piston,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Ammcon Corp. |
| 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 |
|---|---|
| 7508176 PRIMARY | Ammcon Corp. (USA) |
| Reference | Meaning |
|---|---|
| BMC 3479-1 | D/9 Drawing number reference only Ammcon Corp. |
| BMC 3479-1 ITEM 12 | C/1 Advisory reference — outside the item-of-supply concept Ammcon Corp. |
NSN 4820-01-702-4516 is a Piston,valve, manufactured by Ammcon Corp., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-702-4516 has 1 manufacturer part number on file: 7508176 (Ammcon Corp.).
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.