The Valve,check, cataloged under National Stock Number 4820-01-463-6929, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Zidell Valve Corp. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-463-6929 |
| Primary Part Number | 0234 .25 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Zidell Valve Corp |
| Status | ACTIVE |
| Connection Style | PLAIN, OPTIONAL END (PIPE) ALL ENDS |
| Mounting Position | VERTICAL |
| Supplementary Features | FLOW CONTROL DEVICE: STEM |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.250 INCHES ALL ENDS IN |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Material | COPPER ALLOY BODY |
| Material | COPPER ALLOY FLOW CONTROL DEVICE |
| Material | ALUMINUM STEM |
| Material | COPPER ALLOY SEAT |
| Material | GRAPHITE PACKING |
| Thread Series Designator | NPT ALL ENDS |
| Valve Operation Method | MANUAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4820-01-463-6929 is a Valve,check, manufactured by Zidell Valve Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-463-6929 has 2 manufacturer part numbers on file: 0234 .25 (Zidell Valve Corp), 0234 .25 (Fairbanks Co the).
Key specifications for 0234 .25: Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS; Mounting Position: VERTICAL; Supplementary Features: FLOW CONTROL DEVICE: STEM; Connection Type: THREADED INTERNAL PIPE ALL ENDS. 15 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.