The Cap,valve, cataloged under National Stock Number 4820-01-173-8446, 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 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references 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 | 4820-01-173-8446 |
| Primary Part Number | 257 |
| Item Name | Cap,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc |
| Status | ACTIVE |
| Valve Size for Which Designed | 2.000 INCHES IN |
| Valve Model Number for Which Designed | STYLE B,REVERSE ACTING |
| Height | 1.594 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| Outside Diameter | 3.560 INCHES NOMINAL IN |
| Valve Type for Which Designed | TEMPERATURE REGULATING |
| Attachment Method | THREADED |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 257-00 | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
| 40205-14 | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
| 257 PRIMARY | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
| 40205 | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
NSN 4820-01-173-8446 is a Cap,valve, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-173-8446 has 4 cross-referenced part numbers: 257-00 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40205-14 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 257 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40205 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).
There are 12 known substitutes for 4820-01-173-8446: 5935-00-043-2332, 2810-00-118-3730, 5950-00-148-2766 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 257: Valve Size for Which Designed: 2.000 INCHES IN; Valve Model Number for Which Designed: STYLE B,REVERSE ACTING; Height: 1.594 INCHES NOMINAL IN; Material: COPPER ALLOY. 7 total characteristics are documented in the Federal Logistics Information System.