The Valve,expansion, cataloged under National Stock Number 4820-01-276-6941, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Standard Motor Products. Government technical data includes 20 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-276-6941 |
| Primary Part Number | 38901 |
| Item Name | Valve,expansion |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Standard Motor Products |
| Status | ACTIVE |
| Valve Equalizer Location | INTERNAL |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | NOT IDENTICAL |
| Second End Thread Class | 2B |
| First End Thread Class | 2B |
| Third End Relationship with Preceding Ends | IDENTICAL WITH SECOND END |
| First End Style Designator | PLAIN |
| Fourth End Connection Type | THREADED INTERNAL TUBE |
| End Connection Quantity | 4 |
| Second End Thread Direction | RIGHT-HAND |
| Fourth End Thread Direction | RIGHT-HAND |
| Fourth End Style Designator | PLAIN |
| Second End Style Designator | PLAIN |
| First End Connection Type | THREADED INTERNAL TUBE |
| First End Outside Diameter Tube Accommodated | 0.125 INCHES NOMINAL IN |
| Fourth End Relationship with Preceding Ends | NOT IDENTICAL WITH FIRST, SECOND OR THIRD END |
| Media for Which Designed | REFRIGERANT 12 |
| Fourth End Thread Class | 2B |
| Second End Connection Type | THREADED INTERNAL TUBE |
| Second End Outside Diameter Tube Accommodated | 0.312 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 |
|---|---|
| 38901 PRIMARY | Standard Motor Products (USA) |
| Reference | Meaning |
|---|---|
| C80Z19849A | 5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
| E1HZ-19849-A | 5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
| E1HZ-19849-A | 5/9 Secondary reference Ford Motor Company |
NSN 4820-01-276-6941 is a Valve,expansion, manufactured by Standard Motor Products, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-276-6941 has 1 manufacturer part number on file: 38901 (Standard Motor Products).
1 possible match (shared part number, not a government interchangeability claim): 5910-01-365-0093. Verify interchangeability with system specifications before substitution.
Key specifications for 38901: Valve Equalizer Location: INTERNAL; First End Thread Direction: RIGHT-HAND; Second End Relationship with First End: NOT IDENTICAL; Second End Thread Class: 2B. 20 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.