The Valve,safety Relief, cataloged under National Stock Number 4820-01-294-7214, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Anderson Greenwood Lp Dba Anderson Greenwood Crosby. Government technical data includes 20 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-294-7214 |
| Primary Part Number | 9123FFE1251-16T30PSI 1-4IN |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Flange Shape | ROUND WITH HOLES FIRST END |
| Flange Face Design | PLAIN ALL ENDS |
| Connection Style | PLAIN,OPTIONAL END(PIPE) SECOND END |
| Bolt Circle Nominal Diameter | 2.125 INCHES FIRST END IN |
| Connection Type | THREADED INTERNAL PIPE SECOND END |
| Connection Type | FLANGE FIRST END |
| Style Designator | ANGLE |
| Bolt Hole Nominal Diameter | 0.562 INCHES FIRST END IN |
| Adjustable Pressure Range | +16.0 TO 30.0 POUNDS PER SQUARE INCH LBS |
| Bonnet Type | INSIDE SCREW |
| Thread Direction | RIGHT-HAND SECOND END |
| Nominal Thread Size | 0.250 INCHES SECOND END IN |
| Nominal Outside Diameter | 3.250 INCHES FIRST END IN |
| Bolt Hole Quantity | 3 FIRST END |
| Bonnet Attachment Method | THREADED |
| Material | COPPER ALLOY BODY |
| Thread Series Designator | NPT SECOND END |
| Valve Operation Method | AUTOMATIC |
| Nominal Thickness | 0.438 INCHES FIRST END 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 |
|---|---|
| 9123-16T30PSI 1-4IN | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 9123FFE1251-16T30PSI 1-4IN PRIMARY | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| Reference | Meaning |
|---|---|
| FFE1251-16T30 1 | C/1 Advisory reference — outside the item-of-supply concept Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
NSN 4820-01-294-7214 is a Valve,safety Relief, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-294-7214 has 2 manufacturer part numbers on file: 9123-16T30PSI 1-4IN (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 9123FFE1251-16T30PSI 1-4IN (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
Key specifications for 9123FFE1251-16T30PSI 1-4IN: Flow Control Device: DISK; Flange Shape: ROUND WITH HOLES FIRST END; Flange Face Design: PLAIN ALL ENDS; Connection Style: PLAIN,OPTIONAL END(PIPE) SECOND END. 20 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.