The Valve,safety Relief, cataloged under National Stock Number 4820-01-421-9359, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Fluid Mechanics Valve Company. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-421-9359 |
| Primary Part Number | 38201312/SP110 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Fluid Mechanics Valve Company |
| Status | ACTIVE |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE PACKING |
| Material | STEEL COMP 316 OVERALL |
| Opening Pressure Setting | 110.0 POUNDS PER SQUARE INCH LBS |
| 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 |
|---|---|
| 38201312/SP110 PRIMARY | Fluid Mechanics Valve Company (USA) |
NSN 4820-01-421-9359 is a Valve,safety Relief, manufactured by Fluid Mechanics Valve Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-421-9359 has 1 manufacturer part number on file: 38201312/SP110 (Fluid Mechanics Valve Company).
Key specifications for 38201312/SP110: Material: PLASTIC POLYTETRAFLUOROETHYLENE PACKING; Material: STEEL COMP 316 OVERALL; Opening Pressure Setting: 110.0 POUNDS PER SQUARE INCH LBS. 3 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.