The Valve,cartridge,check, cataloged under National Stock Number 4820-01-017-6441, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-017-6441 |
| Item Name | Valve,cartridge,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,1.215 INCH MIN,1.225 INCH MAX LG,0.650 INCH MIN,0.675 INCH MAX OD,3000.0 MAX PSI/ENCLOSED/,MINUS 40 DEG TO 800 DEG F OPERATING TEMP,ONE TO TWO PSIG CRACKING PRESSURE,SPRING LOADED DISK IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 6184-15 | 3/9 Design control — primary reference Air Dry Co of America, Llc |
| 6184-15 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-017-6441 is a Valve,cartridge,check, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-017-6441: General Characteristics Item Description: STEEL,1.215 INCH MIN,1.225 INCH MAX LG,0.650 INCH MIN,0.675 INCH MAX OD,3000.0 MAX PSI/ENCLOSED/,MINUS 40 DEG TO 800 DEG F OPERATING TEMP,ONE TO TWO PSIG CRACKING PRESSURE,SPRING LOADED DISK IN. 1 specification is 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.