The Seat,valve, cataloged under National Stock Number 4820-00-399-2764, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Lawler Manufacturing Company, Inc.. Government technical data includes 11 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 | 4820-00-399-2764 |
| Primary Part Number | 868 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Lawler Manufacturing Company, Inc. |
| Status | ACTIVE |
| Thread Length | 0.375 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Material | STEEL OVERALL |
| Thread Series Designator | UNEF SINGLE THREADED PORTION |
| Thread Class | 2A SINGLE THREADED PORTION A |
| Style Designator | THREADED FLANGED |
| Flange Diameter | 1.875 INCHES NOMINAL IN |
| Seating Surface Shape | FLAT |
| Flange Seat to Disk End Height | 0.375 INCHES NOMINAL IN |
| Nominal Thread Size | 1.625 INCHES SINGLE THREADED PORTION IN |
| Body Inside Diameter | 1.250 INCHES NOMINAL IN |
| Under Flange Height | 0.375 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 868 PRIMARY | Lawler Manufacturing Company, Inc. (USA) |
NSN 4820-00-399-2764 is a Seat,valve, manufactured by Lawler Manufacturing Company, Inc., classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-399-2764 has 1 cross-referenced part number: 868 (Lawler Manufacturing Company, Inc.).
There are 12 known substitutes for 4820-00-399-2764: 6145-00-026-9429, 5940-00-058-9639, 5960-00-170-6446 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 868: Thread Length: 0.375 INCHES NOMINAL SINGLE THREADED PORTION IN; Material: STEEL OVERALL; Thread Series Designator: UNEF SINGLE THREADED PORTION; Thread Class: 2A SINGLE THREADED PORTION A. 11 total characteristics are documented in the Federal Logistics Information System.