The Valve,safety Relief, cataloged under National Stock Number 4820-01-188-5835, 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 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-188-5835 |
| Primary Part Number | DA90C X NMP1135 1031T1210PSI |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| Status | ACTIVE |
| Flow Control Device | DISKDISK |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 1.000 INCHES FIRST END IN |
| Adjustable Pressure Range | +1031.0 TO 1210.0 POUNDS PER SQUARE INCH+1031.0 TO 1210.0 POUNDS PER SQUARE INCH LBS |
| Disk Loading Method | SPRINGSPRING |
| Valve Operation Method | AUTOMATICAUTOMATIC |
| 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 |
|---|---|
| DA90C X NMP1135 1031T1210PSI PRIMARY | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| Reference | Meaning |
|---|---|
| DA90C X NMP1135 1031T1210PSI | 5/9 Secondary reference Kunkle Industries Inc Lonergan Valve Div |
NSN 4820-01-188-5835 is a Valve,safety Relief, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-188-5835 has 1 manufacturer part number on file: DA90C X NMP1135 1031T1210PSI (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
Key specifications for DA90C X NMP1135 1031T1210PSI: Flow Control Device: DISKDISK; Nominal Outside Diameter Tube Accommodated: 0.500 INCHES SECOND END IN; Nominal Outside Diameter Tube Accommodated: 1.000 INCHES FIRST END IN; Adjustable Pressure Range: +1031.0 TO 1210.0 POUNDS PER SQUARE INCH+1031.0 TO 1210.0 POUNDS PER SQUARE INCH LBS. 6 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.