The Valve,check, cataloged under National Stock Number 4820-01-486-5562, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hydroair Hughes, Llc Dba Hydro Air Llc Div Hydroair Dees. Government technical data includes 14 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-486-5562 |
| Primary Part Number | 9664M86P01 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hydroair Hughes, Llc Dba Hydro Air Llc Div Hydroair Dees |
| Status | ACTIVE |
| Connection Style | PLAIN (TUBE) ALL ENDS |
| Mounting Position | HORIZONTAL |
| Minimum Operating Temp | -65.0 FAHRENHEIT DEGF |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 1.060 INCHES ALL ENDS IN |
| Maximum Operating Temp | 450.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Media for Which Designed | OIL, HYDRAULIC SINGLE RESPONSE |
| Thread Class | 3A ALL ENDS A |
| Thread Quantity Per Inch | 12 ALL ENDS |
| Thread Series Designator | UN 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 |
|---|---|
| 9664M86P01 PRIMARY | Hydroair Hughes, Llc Dba Hydro Air Llc Div Hydroair Dees (USA) |
| Reference | Meaning |
|---|---|
| 9664M86P01 | 5/9 Secondary reference Mra Systems, Llc |
| 9664M86 | D/9 Drawing number reference only General Electric Company |
| 9664M86P01 | 5/9 Secondary reference General Electric Company |
NSN 4820-01-486-5562 is a Valve,check, manufactured by Hydroair Hughes, Llc Dba Hydro Air Llc Div Hydroair Dees, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-486-5562 has 1 manufacturer part number on file: 9664M86P01 (Hydroair Hughes, Llc Dba Hydro Air Llc Div Hydroair Dees).
Key specifications for 9664M86P01: Connection Style: PLAIN (TUBE) ALL ENDS; Mounting Position: HORIZONTAL; Minimum Operating Temp: -65.0 FAHRENHEIT DEGF; Connection Type: THREADED EXTERNAL TUBE ALL ENDS. 14 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.