The Seat,valve, cataloged under National Stock Number 4820-01-239-8964, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Trac Regulator Co., Inc. Dba Trac Regulator Co Inc. 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-239-8964 |
| Primary Part Number | 237-02 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc |
| Status | ACTIVE |
| Nominal Thread Size | 1.000 INCHES SINGLE THREADED PORTION IN |
| Body Inside Diameter | 0.745 INCHES NOMINAL IN |
| Thread Class | 2A SINGLE THREADED PORTION A |
| Seating Surface Shape | FLAT |
| Under Flange Height | 0.190 INCHES NOMINAL IN |
| Thread Series Designator | UNS SINGLE THREADED PORTION |
| Material | COPPER ALLOY OVERALL |
| Style Designator | THREADED FLANGED |
| Thread Quantity Per Inch | 18 SINGLE THREADED PORTION |
| Flange Diameter | 1.155 INCHES NOMINAL IN |
| Thread Length | 0.175 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Flange Seat to Disk End Height | 0.062 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 237-02 PRIMARY | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
NSN 4820-01-239-8964 is a Seat,valve, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-239-8964 has 1 cross-referenced part number: 237-02 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).
There are 5 known substitutes for 4820-01-239-8964: 5950-00-146-4817, 5940-00-166-5741, 3020-00-607-6998 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 237-02: Nominal Thread Size: 1.000 INCHES SINGLE THREADED PORTION IN; Body Inside Diameter: 0.745 INCHES NOMINAL IN; Thread Class: 2A SINGLE THREADED PORTION A; Seating Surface Shape: FLAT. 12 total characteristics are documented in the Federal Logistics Information System.