The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-00-409-8313, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Cosmodyne, Llc Dba Cosmodyne Llc. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-409-8313 |
| Primary Part Number | 3200775-1 |
| Item Name | Valve,relief,pressure and Temper |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Cosmodyne, Llc Dba Cosmodyne Llc |
| Status | ACTIVE |
| Flow Control Device | PISTON, SPRING LOADED |
| Second End Relationship with First End | NOT IDENTICAL |
| Body Style | ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS |
| First End Style Designator | EXTERNAL SEAT FOR GASKET SEAL |
| Criticality Code Justification | FEAT |
| End Connection Quantity | 2 |
| First End Connection Type | THREADED EXTERNAL BOSS |
| Temp Adjustability | NOT ADJUSTABLE |
| Material | COPPER ALLOY BODY |
| Second End Connection Type | UNTHREADED INTERNAL TUBE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 3200775-1 PRIMARY | Cosmodyne, Llc Dba Cosmodyne Llc (USA) |
| Reference | Meaning |
|---|---|
| 3200775-1CP | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 1227-1-2X3-4-45PSI | 5/9 Secondary reference Lunkenheimer Co |
NSN 4820-00-409-8313 is a Valve,relief,pressure and Temper, manufactured by Cosmodyne, Llc Dba Cosmodyne Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-409-8313 has 1 manufacturer part number on file: 3200775-1 (Cosmodyne, Llc Dba Cosmodyne Llc).
Key specifications for 3200775-1: Flow Control Device: PISTON, SPRING LOADED; Second End Relationship with First End: NOT IDENTICAL; Body Style: ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS; First End Style Designator: EXTERNAL SEAT FOR GASKET SEAL. 10 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.