The Valve,foot, cataloged under National Stock Number 4820-01-026-2933, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Simmons Mfg Co. Government technical data includes 12 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 | 4820-01-026-2933 |
| Primary Part Number | 631 |
| Item Name | Valve,foot |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Simmons Mfg Co |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| First End Thread Direction | RIGHT-HAND |
| Body Style | CYLINDRICAL (SCREWED) |
| First End Style Designator | PLAIN |
| Body Outside Diameter | 1.315 INCHES NOMINAL IN |
| End Connection Quantity | 1 |
| Operating Pressure | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Valve Loading Spring Location | INTERNAL |
| First End Connection Type | THREADED INTERNAL PIPE |
| First End Nominal Pipe Size Accommodated | 0.750 INCHES IN |
| Material | COPPER ALLOY BODY |
| Material | COPPER ALLOY FLOW CONTROL DEVICE |
| 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 |
|---|---|
| 631 PRIMARY | Simmons Mfg Co (USA) |
NSN 4820-01-026-2933 is a Valve,foot, manufactured by Simmons Mfg Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-026-2933 has 1 manufacturer part number on file: 631 (Simmons Mfg Co).
Key specifications for 631: Flow Control Device: POPPET; First End Thread Direction: RIGHT-HAND; Body Style: CYLINDRICAL (SCREWED); First End Style Designator: PLAIN. 12 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.