The Valve, cataloged under National Stock Number 4820-01-059-7289, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-059-7289 |
| Item Name | Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF B65878,BODY; B66451,DIAPHRAGM; B65859,CAP; A25741,PLUNGER; A29384,VALVE; B66450,SEAT; B65861,SCREW ORIFICE; A66455,1/4-28 S.S. LOCKNUT,B66452,SPRING; B65860,PLATE DIAPH.; 121887 CAPSCR.,1/4-20X3/4,HEX.,6 REQ'D; 120380 LOCKWASHER,6 REQ'D.; 1 INLET AND 1 OUTLET AT PORT POSITIONS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 66963-1 | C/1 Advisory reference — outside the item-of-supply concept Drs Environmental Systems Inc |
| 66963 | 5/9 Secondary reference Phenix Machine Works, Inc. Div Phenix Machine Works |
| 66963-1 | 3/9 Design control — primary reference Davey Compressor Co Div of Keco Industries Inc |
| 66963 | 5/9 Secondary reference Davey Compressor Co Div of Keco Industries Inc |
NSN 4820-01-059-7289 is a Valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5995-01-111-2635. Verify interchangeability with system specifications before substitution.
Key specifications for 4820-01-059-7289: General Characteristics Item Description: CONSISTS OF B65878,BODY; B66451,DIAPHRAGM; B65859,CAP; A25741,PLUNGER; A29384,VALVE; B66450,SEAT; B65861,SCREW ORIFICE; A66455,1/4-28 S.S. LOCKNUT,B66452,SPRING; B65860,PLATE DIAPH.; 121887 CAPSCR.,1/4-20X3/4,HEX.,6 REQ'D; 120380 LOCKWASHER,6 REQ'D.; 1 INLET AND 1 OUTLET AT PORT POSITIONS; Special Features: USED ON E32A1 COMPRESSOR; End Item Identification: E32A-1. 1 specification is 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.