The Valve,check, cataloged under National Stock Number 4820-00-146-8971, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Landoll Corporation Dba Landoll Corporation Drexel Division Div Drexel. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-146-8971 |
| Primary Part Number | 6666 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Landoll Corporation Dba Landoll Corporation Drexel Division Div Drexel |
| Status | ACTIVE |
| Nominal Thread Size | 0.875 INCHES SECOND END IN |
| Thread Series Designator | UNF FIRST END |
| Thread Class | 2A SECOND END A |
| Disk Loading Method | SPRING |
| Thread Series Designator | UNF SECOND END |
| Thread Class | 2A FIRST END A |
| Seat Angle | 37.0 DEGREES FIRST END |
| Connection Style | FLARED (TUBE) FIRST END |
| Style Designator | ANGLE |
| Thread Direction | RIGHT-HAND FIRST END |
| Valve Operation Method | AUTOMATIC |
| Nominal Thread Size | 0.875 INCHES FIRST END IN |
| Flow Control Device | DISK |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END |
| Material | STEEL OVERALL |
| Thread Direction | RIGHT-HAND SECOND END |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 6666 | Landoll Corporation Dba Landoll Corporation Drexel Division Div Drexel (USA) |
NSN 4820-00-146-8971 is a Valve,check, manufactured by Landoll Corporation Dba Landoll Corporation Drexel Division Div Drexel, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-146-8971 has 1 cross-referenced part number: 6666 (Landoll Corporation Dba Landoll Corporation Drexel Division Div Drexel).
There are 12 known substitutes for 4820-00-146-8971: 5210-00-357-9434, 4720-00-857-1731, 2990-00-947-6103 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 6666: Nominal Thread Size: 0.875 INCHES SECOND END IN; Thread Series Designator: UNF FIRST END; Thread Class: 2A SECOND END A; Disk Loading Method: SPRING. 16 total characteristics are documented in the Federal Logistics Information System.