The Repair Kit,valve, cataloged under National Stock Number 4820-01-685-8190, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Multiplex Mfg Co Inc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-685-8190 |
| Primary Part Number | D434G00UX20-2-KIT |
| Item Name | Repair Kit,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Multiplex Mfg Co Inc |
| Status | ACTIVE |
| Valve Type for Which Designed | AIR PRESSURE RELAY |
| Operating Pressure | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Valve Size for Which Designed | 2.00 INCHES IN |
| 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 |
|---|---|
| D434G00UX20-2-KIT PRIMARY | Multiplex Mfg Co Inc (USA) |
| Reference | Meaning |
|---|---|
| UX20-2 | D/9 Drawing number reference only Multiplex Mfg Co Inc |
NSN 4820-01-685-8190 is a Repair Kit,valve, manufactured by Multiplex Mfg Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-685-8190 has 1 manufacturer part number on file: D434G00UX20-2-KIT (Multiplex Mfg Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-685-8666. Verify interchangeability with system specifications before substitution.
Key specifications for D434G00UX20-2-KIT: Valve Type for Which Designed: AIR PRESSURE RELAY; Operating Pressure: 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS; Valve Size for Which Designed: 2.00 INCHES IN; Special Features: REBUILD KIT FOR CRISPIN UX20-2,INCLUDES SEAT,O-RING SET, PLUNGER ASSEMBLY,BEARING AND COTTER PINS.. 3 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.