The Valve,check, cataloged under National Stock Number 4820-00-859-6819, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Allen Aircraft Products Inc. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-859-6819 |
| Primary Part Number | 24C117-3 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Allen Aircraft Products Inc |
| Status | ACTIVE |
| Disk Loading Method | SPRING |
| Style Designator | STRAIGHT THRU |
| Material | ALUMINUM ALLOY AND STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Media for Which Designed | OIL SECOND RESPONSE |
| Material | ALUMINUM ALLOY BODY |
| Surface Treatment | ANODIZE |
| Nominal Outside Diameter Tube Accommodated | 1.500 INCHES ALL ENDS IN |
| Mounting Position | HORIZONTAL |
| Operating Pressure | 60.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Maximum Operating Temp | -40.0 FAHRENHEIT SECOND RESPONSE DEGF |
| Connection Style | PLAIN (TUBE) ALL ENDS |
| Material | ALUMINUM ALLOY OR ALUMINUM SEAT |
| Flow Control Device | DISK |
| Media for Which Designed | FUEL/OIL, HYDROCARBON FIRST RESPONSE |
| Connection Type | UNTHREADED EXTERNAL TUBE ALL ENDS |
| Criticality Code Justification | FEAT |
| Surface Treatment Document and Classification | MIL-A-8625,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-00-859-6819 is a Valve,check, manufactured by Allen Aircraft Products Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-859-6819 has 3 cross-referenced part numbers: 695832-3 (Lockheed Martin Services, Llc), 24C117-3 (Allen Aircraft Products Inc), 695832-3 (Lockheed Martin Corp).
There is 1 known substitute for 4820-00-859-6819: 4820-00-657-0210. Verify interchangeability with system specifications before substitution.
Key specifications for 24C117-3: Disk Loading Method: SPRING; Style Designator: STRAIGHT THRU; Material: ALUMINUM ALLOY AND STEEL CORROSION RESISTING FLOW CONTROL DEVICE; Media for Which Designed: OIL SECOND RESPONSE. 19 total characteristics are documented in the Federal Logistics Information System.