The Valve,check, cataloged under National Stock Number 4820-01-210-6873, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Flair Corporation Dba S P X Air Treatment Div Dehydration. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-210-6873 |
| Primary Part Number | 4820.102.6 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Flair Corporation Dba S P X Air Treatment Div Dehydration |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Connection Style | PLAIN, OPTIONAL END (PIPE) ALL ENDS |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.500 INCHES ALL ENDS IN |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Material | COPPER ALLOY BODY |
| Thread Series Designator | NPT ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| 4820.102.6 PRIMARY | Flair Corporation Dba S P X Air Treatment Div Dehydration (USA) |
| 4820.106.1 | Flair Corporation Dba S P X Air Treatment Div Dehydration (USA) |
| Reference | Meaning |
|---|---|
| 482.102.6 | 5/9 Secondary reference Flair Corporation Dba S P X Air Treatment Div Dehydration |
NSN 4820-01-210-6873 is a Valve,check, manufactured by Flair Corporation Dba S P X Air Treatment Div Dehydration, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-210-6873 has 2 manufacturer part numbers on file: 4820.102.6 (Flair Corporation Dba S P X Air Treatment Div Dehydration), 4820.106.1 (Flair Corporation Dba S P X Air Treatment Div Dehydration).
Key specifications for 4820.102.6: Flow Control Device: DISK; Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS; Connection Type: THREADED INTERNAL PIPE ALL ENDS; Thread Direction: RIGHT-HAND ALL ENDS. 9 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.