The Valve,check, cataloged under National Stock Number 4820-00-075-2380, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Honeywell Engines and Systems. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-075-2380 |
| Primary Part Number | 46-2020-018 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Honeywell Engines and Systems |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Connection Style | SWIVEL NUT, COMPRESSION (TUBE) ALL ENDS |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES ALL ENDS IN |
| Operating Pressure | 100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Size | 0.750 INCHES IN |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.750 INCHES ALL ENDS IN |
| Maximum Operating Temp | 500.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Mounting Facility | THREADED FASTENER |
| Surface Treatment | PASSIVATE |
| Face to Face Distance | 3.000 INCHES IN |
| Media for Which Designed | ETHYLENE GLYCOL SINGLE RESPONSE |
| Thread Class | 3A ALL ENDS A |
| Thread Quantity Per Inch | 16 ALL ENDS |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNF 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 |
|---|---|
| 403-00134 | Danfoss Power Solutions II, Llc (USA) |
| 46-2020-018 PRIMARY | Honeywell Engines and Systems (USA) |
| 9176185-4 | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| 403-00134 | 5/9 Secondary reference Dana Corp Weatherhead Div |
| 46-2020-018 | 5/9 Secondary reference Grimes Aerospace Company |
NSN 4820-00-075-2380 is a Valve,check, manufactured by Honeywell Engines and Systems, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-075-2380 has 3 manufacturer part numbers on file: 403-00134 (Danfoss Power Solutions II, Llc), 46-2020-018 (Honeywell Engines and Systems), 9176185-4 (Us Army Aviation and Missile Command).
Key specifications for 46-2020-018: Flow Control Device: POPPET; Connection Style: SWIVEL NUT, COMPRESSION (TUBE) ALL ENDS; Style Designator: STRAIGHT THRU FLANGED ENDS; Nominal Outside Diameter Tube Accommodated: 0.500 INCHES ALL ENDS IN. 18 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.