The Seat,valve, cataloged under National Stock Number 4810-01-136-0731, is classified within Federal Supply Class 4810 (No Item Name Available) of the Valves group. The primary manufacturer of record is Automatic Switch Company Dba Asco. Government technical data includes 12 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-01-136-0731 |
| Primary Part Number | 21-230 |
| Item Name | Seat,valve |
| FSC / FSG | 4810 / 48 — No Item Name Available |
| Manufacturer | Automatic Switch Company Dba Asco |
| Status | ACTIVE |
| Body Inside Diameter | 0.372 INCHES NOMINAL IN |
| Thread Series Designator | UNF SINGLE THREADED PORTION |
| Style Designator | THREADED FLANGED |
| Material | STEEL OVERALL |
| Seating Surface Shape | ANGULAR |
| Seat Angle in Deg | 55.000 NOMINAL |
| Flange Seat to Disk End Height | 0.362 INCHES NOMINAL IN |
| Flange Diameter | 0.700 INCHES NOMINAL IN |
| Nominal Thread Size | 0.625 INCHES SINGLE THREADED PORTION IN |
| Under Flange Height | 0.372 INCHES NOMINAL IN |
| Thread Length | 0.266 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Thread Class | 2A SINGLE THREADED PORTION A |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 21-230 PRIMARY | Automatic Switch Company Dba Asco (USA) |
NSN 4810-01-136-0731 is a Seat,valve, manufactured by Automatic Switch Company Dba Asco, classified under FSC 4810 (No Item Name Available). Status: active.
NSN 4810-01-136-0731 has 1 cross-referenced part number: 21-230 (Automatic Switch Company Dba Asco).
There are 9 known substitutes for 4810-01-136-0731: 5998-00-179-0735, 5945-00-184-9651, 5310-00-367-1799 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for 21-230: Body Inside Diameter: 0.372 INCHES NOMINAL IN; Thread Series Designator: UNF SINGLE THREADED PORTION; Style Designator: THREADED FLANGED; Material: STEEL OVERALL. 12 total characteristics are documented in the Federal Logistics Information System.