The Valve,safety Relief, cataloged under National Stock Number 4820-01-720-9631, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Pall Aeropower Corporation. Government technical data includes 11 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 | 4820-01-720-9631 |
| Primary Part Number | V11500A018 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Pall Aeropower Corporation |
| Status | ACTIVE |
| Minimum Operating Temp | -54.0 CELSIUS DEGC |
| Nominal Outside Diameter Hose Accommodated | 15.88 MILLIMETERS ALL ENDS MM |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 3.100 POUNDS PER SQUARE INCH GAUGE (PSIG) NOMINAL POWER DRIVE LBS |
| Nominal Thread Size | 0.750 MILLIMETERS ALL ENDS MM |
| Maximum Operating Temp | 135.0 CELSIUS SINGLE RESPONSE DEGC |
| Nominal Width | 25.4 MILLIMETERS ALL ENDS MM |
| Thread Class | 3A ALL ENDS A |
| Thread Quantity Per Inch | 16 ALL ENDS |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS |
| Valve Discharge Flow Rate | 78.0 GALLONS PER MINUTE |
| 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 |
|---|---|
| V11500A018 PRIMARY | Pall Aeropower Corporation (USA) |
NSN 4820-01-720-9631 is a Valve,safety Relief, manufactured by Pall Aeropower Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-720-9631 has 1 manufacturer part number on file: V11500A018 (Pall Aeropower Corporation).
Key specifications for V11500A018: Minimum Operating Temp: -54.0 CELSIUS DEGC; Nominal Outside Diameter Hose Accommodated: 15.88 MILLIMETERS ALL ENDS MM; Style Designator: STRAIGHT THRU; Operating Pressure: 3.100 POUNDS PER SQUARE INCH GAUGE (PSIG) NOMINAL POWER DRIVE LBS. 11 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.