The Valve,safety Relief, cataloged under National Stock Number 4820-01-692-7557, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump and Power Division. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump and Power Division (CAGE 05448) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-692-7557 |
| Primary Part Number | 650659 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump and Power 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 |
|---|---|
| 650659 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump and Power Division (USA) |
| Reference | Meaning |
|---|---|
| 12628180 ITEM 3 | C/1 Advisory reference — outside the item-of-supply concept U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 4820-01-692-7557 is a Valve,safety Relief, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump and Power Division, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-692-7557 has 1 manufacturer part number on file: 650659 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump and Power Division).
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.