The Valve,check, cataloged under National Stock Number 4820-01-319-4327, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-319-4327 |
| Primary Part Number | 6310143 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Mounting Position | HORIZONTAL |
| Style Designator | STRAIGHT THRU |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Material | RUBBER FLUOROSILICONE CLASS FQ BODY |
| 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 |
|---|---|
| 6310143 | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| 6310143 PRIMARY | Naval Sea Systems Command (USA) |
| 6310143F | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
NSN 4820-01-319-4327 is a Valve,check, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-319-4327 has 3 manufacturer part numbers on file: 6310143 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)), 6310143 (Naval Sea Systems Command), 6310143F (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
Key specifications for 6310143: Flow Control Device: DISK; Mounting Position: HORIZONTAL; Style Designator: STRAIGHT THRU; Media for Which Designed: AIR SINGLE RESPONSE. 6 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.