The Valve,safety Relief, cataloged under National Stock Number 4820-01-361-2174, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Vilter Mfg Corp. Government technical data includes 1 verified specification, 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-361-2174 |
| Primary Part Number | 1721B |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Vilter Mfg Corp |
| Status | ACTIVE |
| Valve Operation Method | AUTOMATIC |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 1721B PRIMARY | Vilter Mfg Corp (USA) |
NSN 4820-01-361-2174 is a Valve,safety Relief, manufactured by Vilter Mfg Corp, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-361-2174 has 1 cross-referenced part number: 1721B (Vilter Mfg Corp).
There are 2 known substitutes for 4820-01-361-2174: 4730-00-460-3869, 1650-00-794-7010. Verify interchangeability with system specifications before substitution.
Key specifications for 1721B: Valve Operation Method: AUTOMATIC. 1 total characteristics are documented in the Federal Logistics Information System.