The Valve,expansion, cataloged under National Stock Number 4820-01-198-2760, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Duke Mfg Co. Government technical data includes 17 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 | 4820-01-198-2760 |
| Primary Part Number | 31-65-08 |
| Item Name | Valve,expansion |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Duke Mfg Co |
| Status | ACTIVE |
| Flow Control Device | NEEDLE |
| Valve Equalizer Location | INTERNAL |
| Second End Relationship with First End | NOT IDENTICAL |
| Body Style | ANGLE GIVE "ADQM" OR "ADQN" IF FLANGED ONE OR TWO ENDS |
| Bulb Length | 3.000 INCHES NOMINAL IN |
| Bulb Diameter | 0.375 INCHES NOMINAL IN |
| Mounting Method | CLAMP BULB |
| Refrigeration Capacity in Btu Per Hour | 2.2 |
| End Connection Quantity | 2 |
| First End Connection Type | THREADED EXTERNAL TUBE |
| Valve Evaporator Temp Range Designation | HIGH |
| Bulb Media Type | REFRIGERANT 12 |
| First End Outside Diameter Tube Accommodated | 0.500 INCHES NOMINAL IN |
| Material | COPPER ALLOY BODY |
| Valve Expansion Control Type | THERMOSTATIC |
| Second End Connection Type | THREADED EXTERNAL TUBE |
| Second End Outside Diameter Tube Accommodated | 0.250 INCHES NOMINAL 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 |
|---|---|
| 31-65-08 PRIMARY | Duke Mfg Co (USA) |
NSN 4820-01-198-2760 is a Valve,expansion, manufactured by Duke Mfg Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-198-2760 has 1 manufacturer part number on file: 31-65-08 (Duke Mfg Co).
Key specifications for 31-65-08: Flow Control Device: NEEDLE; Valve Equalizer Location: INTERNAL; Second End Relationship with First End: NOT IDENTICAL; Body Style: ANGLE GIVE "ADQM" OR "ADQN" IF FLANGED ONE OR TWO ENDS. 17 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.