The Valve,check, cataloged under National Stock Number 4820-00-141-9051, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Transdigm Inc Div Aero Fluid Products. Government technical data includes 15 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-141-9051 |
| Primary Part Number | 301000 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Transdigm Inc Div Aero Fluid Products |
| Status | ACTIVE |
| Operating Pressure | 50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Class | 3B FIRST END |
| Material | ALUMINUM ALLOY SEAT |
| Surface Treatment | ANODIZE |
| Thread Quantity Per Inch | 12 FIRST END |
| Connection Style | GASKET SEAL (BOSS) FIRST END |
| Disk Loading Method | SPRING |
| Valve Operation Method | AUTOMATIC |
| Nominal Thread Size | 1.312 INCHES FIRST END IN |
| Material | ALUMINUM ALLOY BODY |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Flow Control Device | DISK |
| Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) FIRST END |
| Style Designator | STRAIGHT THRU |
| Thread Direction | RIGHT-HAND FIRST END |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-00-141-9051 is a Valve,check, manufactured by Transdigm Inc Div Aero Fluid Products, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-141-9051 has 3 cross-referenced part numbers: 301000 (Transdigm Inc Div Aero Fluid Products), 633869-16 (Lockheed Martin Corp), 633869 (Lockheed Martin Corp).
There are 8 known substitutes for 4820-00-141-9051: 5977-01-084-2871, 6515-01-163-7938, 3040-01-188-2979 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for 301000: Operating Pressure: 50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Thread Class: 3B FIRST END; Material: ALUMINUM ALLOY SEAT; Surface Treatment: ANODIZE. 15 total characteristics are documented in the Federal Logistics Information System.