The Valve,check, cataloged under National Stock Number 4820-00-732-3719, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Pneudraulics, Inc.. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-732-3719 |
| Primary Part Number | 1968-1 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Pneudraulics, Inc. |
| Status | ACTIVE |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Thread Direction | RIGHT-HAND FIRST END |
| Thread Quantity Per Inch | 12 FIRST END |
| Disk Loading Method | SPRING |
| Connection Style | FLARED (TUBE) FIRST END |
| Flow Control Device | POPPET |
| Thread Class | 3A FIRST END A |
| Supplementary Features | APPL TO ACFT,TYPE C-141 |
| Media for Which Designed | HYDRAULIC FLUID, PHOSPHATE-ESTER BASE SINGLE RESPONSE |
| Material | ALUMINUM ALLOY 2024 BODY |
| Style Designator | STRAIGHT THRU |
| Thread Series Designator | UN FIRST END |
| Surface Treatment | ANODIZE |
| Nominal Outside Diameter Tube Accommodated | 1.250 INCHES FIRST END IN |
| Nominal Thread Size | 1.625 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 3H90028-103 | Lockheed Martin Corp (USA) |
| 1968-1 PRIMARY | Pneudraulics, Inc. (USA) |
NSN 4820-00-732-3719 is a Valve,check, manufactured by Pneudraulics, Inc., classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-732-3719 has 2 cross-referenced part numbers: 3H90028-103 (Lockheed Martin Corp), 1968-1 (Pneudraulics, Inc.).
There are 3 known substitutes for 4820-00-732-3719: 5935-00-825-8258, 5977-00-842-9625, 6140-01-211-9906. Verify interchangeability with system specifications before substitution.
Key specifications for 1968-1: Connection Type: THREADED EXTERNAL TUBE FIRST END; Thread Direction: RIGHT-HAND FIRST END; Thread Quantity Per Inch: 12 FIRST END; Disk Loading Method: SPRING. 17 total characteristics are documented in the Federal Logistics Information System.