The Valve,expansion, cataloged under National Stock Number 4820-01-313-0580, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Imi Cornelius Inc.. Government technical data includes 28 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-313-0580 |
| Primary Part Number | 638036365 |
| Item Name | Valve,expansion |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Imi Cornelius Inc. |
| Status | ACTIVE |
| First End Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) |
| Valve Equalizer Location | INTERNAL |
| Second End Seat Angle in Deg | 45.0 |
| First End Thread Direction | RIGHT-HAND |
| Second End Nominal Thread Size | 0.750 INCHES IN |
| Second End Relationship with First End | NOT IDENTICAL |
| Second End Thread Class | 3A A |
| Body Style | ANGLE GIVE "ADQM" OR "ADQN" IF FLANGED ONE OR TWO ENDS |
| First End Seat Angle in Deg | 45.0 |
| First End Thread Class | 3A A |
| First End Style Designator | PLAIN |
| Mounting Method | CLAMP BULB |
| Refrigeration Capacity in Btu Per Hour | 3.0 |
| Second End Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) |
| End Connection Quantity | 2 |
| Second End Thread Direction | RIGHT-HAND |
| Second Connection Face to Centerline Distance | 1.810 INCHES NOMINAL IN |
| Capillary Tube Length | 15.000 INCHES NOMINAL IN |
| Second End Style Designator | PLAIN |
| First End Connection Type | THREADED EXTERNAL TUBE |
| First End Outside Diameter Tube Accommodated | 0.250 INCHES NOMINAL IN |
| Material | COPPER ALLOY BODY |
| Material | COPPER ALLOY STEM |
| Valve Expansion Control Type | THERMOSTATIC |
| Media for Which Designed | REFRIGERANT R-502 |
| Second End Connection Type | THREADED EXTERNAL TUBE |
| First End Nominal Thread Size | 0.438 INCHES IN |
| Second End Outside Diameter Tube Accommodated | 0.500 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 |
|---|---|
| 638036365 PRIMARY | Imi Cornelius Inc. (USA) |
| Reference | Meaning |
|---|---|
| 08951 | 5/9 Secondary reference Wilshire Corp |
| 36365 | 5/9 Secondary reference Wilshire Corp |
| NI-1/4-RZ | 5/1 Secondary reference Parker-Hannifin Corp Div Sporlan Division |
NSN 4820-01-313-0580 is a Valve,expansion, manufactured by Imi Cornelius Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-313-0580 has 1 manufacturer part number on file: 638036365 (Imi Cornelius Inc.).
Key specifications for 638036365: First End Thread Series Designator: UNIFIED NATIONAL JOINT (UNJ); Valve Equalizer Location: INTERNAL; Second End Seat Angle in Deg: 45.0; First End Thread Direction: RIGHT-HAND. 28 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.