The Valve,dual Relief, cataloged under National Stock Number 4820-01-254-4572, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Danfoss Fluid Power Inc Easley Opn. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 4820-01-254-4572 |
| Primary Part Number | 1LL22-F4W-25S |
| Item Name | Valve,dual Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Danfoss Fluid Power Inc Easley Opn |
| Status | ACTIVE |
| General Characteristics Item Description | BODY ALUMINUM ALLOY,INTERNAL PARTS STEEL; FLOW CONTROL DEVICE SPRING LOADED POPPET; MEDIA FOR WHICH DESIGNED HYDRAULIC OILS; RECOMMENDED FOR RELIEF PRESSURES TO 5000 PSI /350 BAR/; THDS 0.500 IN. BSPPL; SCREW ADJUST MEANS; 25PSI ADJUSTABLE RANGE; 7.56 IN. LG; SEALS INCLUDED; 1.250 IN. THICK; 2.000 IN. WIDE; 40 GPM IN |
| 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 |
|---|---|
| 1LL22-F4W-25S PRIMARY | Danfoss Fluid Power Inc Easley Opn (USA) |
| 9187 Y 230 | Honeywell Aerospace Yeovil Div Aerospace -Yeovil (GBR) |
| Reference | Meaning |
|---|---|
| D7124 | 5/9 Secondary reference Ministry of Defence, De&s Underwater and Electronic Warfare Pt (uew Ipt) |
| D7124 | 5/9 Secondary reference Ministry of Defence, De&s Underwater and Electronic Warfare Pt (uew Ipt) |
NSN 4820-01-254-4572 is a Valve,dual Relief, manufactured by Danfoss Fluid Power Inc Easley Opn, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-254-4572 has 2 manufacturer part numbers on file: 1LL22-F4W-25S (Danfoss Fluid Power Inc Easley Opn), 9187 Y 230 (Honeywell Aerospace Yeovil Div Aerospace -Yeovil).
Key specifications for 1LL22-F4W-25S: General Characteristics Item Description: BODY ALUMINUM ALLOY,INTERNAL PARTS STEEL; FLOW CONTROL DEVICE SPRING LOADED POPPET; MEDIA FOR WHICH DESIGNED HYDRAULIC OILS; RECOMMENDED FOR RELIEF PRESSURES TO 5000 PSI /350 BAR/; THDS 0.500 IN. BSPPL; SCREW ADJUST MEANS; 25PSI ADJUSTABLE RANGE; 7.56 IN. LG; SEALS INCLUDED; 1.250 IN. THICK; 2.000 IN. WIDE; 40 GPM IN. 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.