The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-381-0122, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-381-0122 |
| Primary Part Number | 211003041C1 |
| Item Name | Valve,relief,pressure and Temper |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Flow Control Device | DISK, PLUG TYPE |
| Body Style | ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS |
| First Connection Face to Centerline Distance | 8.500 INCHES NOMINAL IN |
| Criticality Code Justification | ZZZY |
| End Connection Quantity | 2 |
| Second Connection Face to Centerline Distance | 8.250 INCHES NOMINAL IN |
| Opening Pressure Setting | ERR-060 |
| Material | NICKEL ALLOY STEM |
| Material | NICKEL ALLOY SEAT |
| Material | NICKEL ALLOY BODY |
| Reference Number Differentiating Characteristics | QUALITY CONTROLLED IAW NAVY LEVEL 1 ASSURANCE GUIDE, CLEANED IAW MIL-C-52211 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 211003041C1 | Naval Inventory Control Point Mechanicsburg (USA) |
| SW118B01E3300C1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| SW118 | 5/1 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| SW118B01E3300 | 3/1 Design control — primary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
NSN 4820-01-381-0122 is a Valve,relief,pressure and Temper, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-381-0122 has 2 manufacturer part numbers on file: 211003041C1 (Naval Inventory Control Point Mechanicsburg), SW118B01E3300C1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 211003041C1: Flow Control Device: DISK, PLUG TYPE; Body Style: ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS; First Connection Face to Centerline Distance: 8.500 INCHES NOMINAL IN; Criticality Code Justification: ZZZY. 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.
NSN 4820-01-381-0122 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.