The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-00-409-6327, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Insinger Machine Co. Government technical data includes 24 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 | 4820-00-409-6327 |
| Primary Part Number | D2280 |
| Item Name | Valve,relief,pressure and Temper |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Insinger Machine Co |
| Status | ACTIVE |
| Flow Control Device | DISK, CIRCULAR |
| First End Thread Series Designator | NPT |
| First End Thread Direction | RIGHT-HAND |
| Temp Rating | 210.0 FAHRENHEIT DEGF |
| Second End Nominal Thread Size | 0.750 INCHES IN |
| Second End Relationship with First End | NOT IDENTICAL |
| Second End Thread Class | 2A A |
| Body Style | ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS |
| First End Thread Class | 2B |
| First End Style Designator | PLAIN |
| Bulb Diameter | 0.265 INCHES NOMINAL IN |
| Second End Thread Series Designator | NPT |
| Second End Nominal Pipe Size Accommodated | 0.750 INCHES IN |
| End Connection Quantity | 2 |
| Second End Thread Direction | RIGHT-HAND |
| Second End Style Designator | PLAIN |
| Opening Pressure Setting | ERR-060 |
| Temp Control Device Type | THERMOSTATIC |
| First End Connection Type | THREADED INTERNAL PIPE |
| Temp Adjustability | NOT ADJUSTABLE |
| First End Nominal Pipe Size Accommodated | 0.750 INCHES IN |
| Material | COPPER ALLOY BODY |
| Second End Connection Type | THREADED EXTERNAL PIPE |
| First End Nominal Thread Size | 0.750 INCHES 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 |
|---|---|
| D2280 PRIMARY | Insinger Machine Co (USA) |
NSN 4820-00-409-6327 is a Valve,relief,pressure and Temper, manufactured by Insinger Machine Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-409-6327 has 1 manufacturer part number on file: D2280 (Insinger Machine Co).
Key specifications for D2280: Flow Control Device: DISK, CIRCULAR; First End Thread Series Designator: NPT; First End Thread Direction: RIGHT-HAND; Temp Rating: 210.0 FAHRENHEIT DEGF. 24 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.