The Valve,expansion, cataloged under National Stock Number 4820-01-219-4271, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is General Motors Llc Dba General Motors Llc. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-219-4271 |
| Primary Part Number | 06551447 |
| Item Name | Valve,expansion |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| Flow Control Device | PISTON, FREE TYPE |
| Body Style | ANGLE GIVE "ADQM" OR "ADQN" IF FLANGED ONE OR TWO ENDS |
| End Connection Quantity | 2 |
| First End Connection Type | THREADED EXTERNAL PIPE |
| 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 |
|---|---|
| 06551447 | General Motors Llc Dba General Motors Llc (USA) |
| 5910744 | General Motors Llc Dba General Motors Llc (USA) |
| Reference | Meaning |
|---|---|
| 5910744 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
| 06551447 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
| A8262 | 3/9 Design control — primary reference Everco Industries Inc |
| A8262 | 5/9 Secondary reference Everco Industries Inc |
NSN 4820-01-219-4271 is a Valve,expansion, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-219-4271 has 2 manufacturer part numbers on file: 06551447 (General Motors Llc Dba General Motors Llc), 5910744 (General Motors Llc Dba General Motors Llc).
Key specifications for 06551447: Flow Control Device: PISTON, FREE TYPE; Body Style: ANGLE GIVE "ADQM" OR "ADQN" IF FLANGED ONE OR TWO ENDS; End Connection Quantity: 2; First End Connection Type: THREADED EXTERNAL PIPE. 4 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.