The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-475-5057, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Leslie Controls, Inc. Dba Leslie Controls Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-475-5057 |
| Primary Part Number | Y303700810 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Leslie Controls, Inc. Dba Leslie Controls Inc |
| 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 |
|---|---|
| LNS5-1.5 IN-600 LB FLNGE | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| Y303700810 PRIMARY | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| 17390N | D/9 Drawing number reference only Leslie Controls, Inc. Dba Leslie Controls Inc |
| LNS-5,1 1/2IN,S | C/1 Advisory reference — outside the item-of-supply concept Leslie Controls, Inc. Dba Leslie Controls Inc |
NSN 4820-01-475-5057 is a Valve,regulating,fluid Pressure, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-475-5057 has 2 manufacturer part numbers on file: LNS5-1.5 IN-600 LB FLNGE (Leslie Controls, Inc. Dba Leslie Controls Inc), Y303700810 (Leslie Controls, Inc. Dba Leslie Controls Inc).
Key specifications for Y303700810: Special Features: CLASS A; PER MIL-V-17848C; 1.500 INCH VALVE; MODEL LNS5 IN; Part Name Assigned by Controlling Agency: STEAM PRESSURE REGULATOR; End Item Identification: NAVY EQUIPMENT. 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.