The Valve,check, cataloged under National Stock Number 4820-01-313-8637, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is The Boeing Company Div Defense. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-313-8637 |
| Primary Part Number | 7M640-28 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Style Designator | STRAIGHT THRU |
| Surface Treatment | ANODIZE |
| Material | ALUMINUM ALLOY BODY |
| Opening Pressure Setting | 0.25 POUNDS PER SQUARE INCH LBS |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Operating Pressure | 120.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Operation Method | AUTOMATIC |
| Mounting Facility | BRACKET(S) |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-01-313-8637 is a Valve,check, manufactured by The Boeing Company Div Defense, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-313-8637 has 3 cross-referenced part numbers: 6-2801 (Aerocontrolex Group, Inc. Dba Aero Fluid Products), 7M640 (The Boeing Company Div Defense), 7M640-28 (The Boeing Company Div Defense).
There are 4 known substitutes for 4820-01-313-8637: 5950-00-061-2119, 5945-00-617-9526, 4820-01-150-4901 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 7M640-28: Style Designator: STRAIGHT THRU; Surface Treatment: ANODIZE; Material: ALUMINUM ALLOY BODY; Opening Pressure Setting: 0.25 POUNDS PER SQUARE INCH LBS. 8 total characteristics are documented in the Federal Logistics Information System.