The Valve,check, cataloged under National Stock Number 4820-00-397-9530, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Lockheed Martin Corp. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-397-9530 |
| Primary Part Number | 695620-1 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Lockheed Martin Corp |
| Status | CANCELLED |
| Style Designator | CROSS |
| Thread Direction | RIGHT-HAND FIRST END |
| Flow Control Device | DISK |
| Seat Angle | 37.0 DEGREES SECOND END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Seat Angle | 37.0 DEGREES FIRST END |
| Connection Style | FLARED (TUBE) FIRST END |
| Thread Class | 2A FIRST END A |
| Nominal Thread Size | 0.375 INCHES FIRST END IN |
| Material | ALUMINUM OVERALL |
| Nominal Thread Size | 0.375 INCHES SECOND END IN |
| Thread Class | 2A SECOND END A |
| Connection Style | FLARED (TUBE) SECOND END |
| Disk Loading Method | SPRING |
| Thread Series Designator | UNF SECOND END |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Thread Direction | RIGHT-HAND SECOND END |
| Thread Series Designator | UNF FIRST END |
| Surface Treatment | ANODIZE |
| Valve Operation Method | AUTOMATIC |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 316000 | Transdigm Inc Div Aero Fluid Products (USA) |
| 1111-517703-1 | Parker Hannifin Corporation Div Aerospace Group Headquarters (USA) |
| 4820PL1573757 | Jednolity Indeks Materialowy - Uniform Material Index (POL) |
| 34-1900-1 | Aerocontrolex Group, Inc. Dba Aero Fluid Products (USA) |
| 695620-1 PRIMARY | Lockheed Martin Corp (USA) |
| 8C111 | Allen Aircraft Products Inc (USA) |
NSN 4820-00-397-9530 is a Valve,check, manufactured by Lockheed Martin Corp, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-397-9530 has 6 cross-referenced part numbers: 316000 (Transdigm Inc Div Aero Fluid Products), 1111-517703-1 (Parker Hannifin Corporation Div Aerospace Group Headquarters), 4820PL1573757 (Jednolity Indeks Materialowy - Uniform Material Index), 34-1900-1 (Aerocontrolex Group, Inc. Dba Aero Fluid Products), 695620-1 (Lockheed Martin Corp) and 1 more.
There are 2 known substitutes for 4820-00-397-9530: 5996-00-501-2379, 2520-01-184-5540. Verify interchangeability with system specifications before substitution.
Key specifications for 695620-1: Style Designator: CROSS; Thread Direction: RIGHT-HAND FIRST END; Flow Control Device: DISK; Seat Angle: 37.0 DEGREES SECOND END. 21 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-397-9530 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.