The Head,valve, cataloged under National Stock Number 4820-01-475-5488, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Parker Hannifin Corporation Div Cylinder Division. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Head,valve |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Parker Hannifin Corporation Div Cylinder Division (CAGE 13829) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-475-5488 |
| Primary Part Number | 347 9156 040 |
| Item Name | Head,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Parker Hannifin Corporation Div Cylinder Division |
| 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 |
|---|---|
| 347 9156 040 PRIMARY | Parker Hannifin Corporation Div Cylinder Division (USA) |
| Reference | Meaning |
|---|---|
| 347 9203 851 | D/9 Drawing number reference only Parker Hannifin Corporation Div Cylinder Division |
| VG20-YTB8088 | D/9 Drawing number reference only Parker Hannifin Corporation Div Cylinder Division |
NSN 4820-01-475-5488 is a Head,valve, manufactured by Parker Hannifin Corporation Div Cylinder Division, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-475-5488 has 1 manufacturer part number on file: 347 9156 040 (Parker Hannifin Corporation Div Cylinder Division).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-475-6595, 4820-01-475-6599. 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.