The Valve,safety Relief, cataloged under National Stock Number 4820-01-340-3187, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Ruthman Pump and Engineering Inc Dba Fulflo Specialties Co Div Fulflo Specialties Co.. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, 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 | 4820-01-340-3187 |
| Primary Part Number | SVJ4021 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Ruthman Pump and Engineering Inc Dba Fulflo Specialties Co Div Fulflo Specialties Co. |
| Status | ACTIVE |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Material | IRON CAST BODY |
| Nominal Thread Size | 0.750 INCHES ALL ENDS IN |
| Nominal Pipe Size Accommodated | 0.750 INCHES ALL ENDS IN |
| Valve Operation Method | AUTOMATIC |
| Thread Series Designator | NPTF ALL ENDS |
| Connection Style | PLAIN,OPTIONAL END(PIPE) ALL ENDS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-01-340-3187 is a Valve,safety Relief, manufactured by Ruthman Pump and Engineering Inc Dba Fulflo Specialties Co Div Fulflo Specialties Co., classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-340-3187 has 3 cross-referenced part numbers: SVJ4021 (Ruthman Pump and Engineering Inc Dba Fulflo Specialties Co Div Fulflo Specialties Co.), SVJ4021R (Ruthman Pump and Engineering Inc Dba Fulflo Specialties Co Div Fulflo Specialties Co.), 1000193 (Tld Ace Corp Div Tld Ace).
There are 5 known substitutes for 4820-01-340-3187: 5305-00-054-6666, 5945-00-921-3799, 5365-01-308-9812 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for SVJ4021: Connection Type: THREADED INTERNAL PIPE ALL ENDS; Thread Direction: RIGHT-HAND ALL ENDS; Material: IRON CAST BODY; Nominal Thread Size: 0.750 INCHES ALL ENDS IN. 8 total characteristics are documented in the Federal Logistics Information System.