The Piston,valve, cataloged under National Stock Number 4820-01-440-1483, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Products Support, Llc Dba Vitesse Systems - Jessup, Md. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-440-1483 |
| Primary Part Number | 81014-9 |
| Item Name | Piston,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Products Support, Llc Dba Vitesse Systems - Jessup, Md |
| 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 |
|---|---|
| 81014-9 PRIMARY | Products Support, Llc Dba Vitesse Systems - Jessup, Md (USA) |
| Reference | Meaning |
|---|---|
| 81014-9 | 3/9 Design control — primary reference Xar Industries Inc |
NSN 4820-01-440-1483 is a Piston,valve, manufactured by Products Support, Llc Dba Vitesse Systems - Jessup, Md, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-440-1483 has 1 manufacturer part number on file: 81014-9 (Products Support, Llc Dba Vitesse Systems - Jessup, Md).
Key specifications for 81014-9: Special Features: FOR TESTER ASSEMBLY; End Item Identification: AIRCRAFT, HORNET F/A-18. 0 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.