The Valve,check, cataloged under National Stock Number 4820-01-300-7738, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-300-7738 |
| Primary Part Number | 9-1985-1 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris |
| Status | ACTIVE |
| Seat Angle | 37.0 DEGREES FIRST END |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS |
| Nominal Thread Size | 0.562 INCHES ALL ENDS IN |
| Material | STEEL CORROSION RESISTING BODY |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Thread Class | 3A ALL ENDS A |
| Connection Style | PLAIN (TUBE) FIRST END |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Connection Style | FLARED (TUBE) SECOND END |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Valve Operation Method | AUTOMATIC |
| Style Designator | STRAIGHT THRU |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 9-1985-1 PRIMARY | Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris (USA) |
| 3469-6 PRIMARY | Hawker Pacific Aerospace Landing Gear and Components Mfg and Repair (USA) |
| 209-076-655-3 | Bell Textron Inc (USA) |
| 9-1985-1 | Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit (USA) |
| 1C1120 PRIMARY | Crissair Inc Div Esco Technologies (USA) |
NSN 4820-01-300-7738 is a Valve,check, manufactured by Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-300-7738 has 5 cross-referenced part numbers: 9-1985-1 (Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris), 3469-6 (Hawker Pacific Aerospace Landing Gear and Components Mfg and Repair), 209-076-655-3 (Bell Textron Inc), 9-1985-1 (Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit), 1C1120 (Crissair Inc Div Esco Technologies).
There are 2 known substitutes for 4820-01-300-7738: 7530-00-286-6970, 1680-00-554-2539. Verify interchangeability with system specifications before substitution.
Key specifications for 9-1985-1: Seat Angle: 37.0 DEGREES FIRST END; Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS; Nominal Thread Size: 0.562 INCHES ALL ENDS IN. 13 total characteristics are documented in the Federal Logistics Information System.