The Piston,valve, cataloged under National Stock Number 4820-01-398-8520, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is United Western Supply Company Dba Uni-West. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 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 | 4820-01-398-8520 |
| Primary Part Number | 333A |
| Item Name | Piston,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | United Western Supply Company Dba Uni-West |
| Status | ACTIVE |
| Valve Design Control Activity | 0F5S6 |
| Valve Model Number for Which Designed | 400 |
| Features Provided | GROOVED |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-01-398-8520 is a Piston,valve, manufactured by United Western Supply Company Dba Uni-West, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-398-8520 has 2 cross-referenced part numbers: 333A (United Western Supply Company Dba Uni-West), 333A (Barnes Robert a Inc).
There are 5 known substitutes for 4820-01-398-8520: 6625-00-089-4227, 9905-00-202-3639, 6625-01-204-5938 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 333A: Valve Design Control Activity: 0F5S6; Valve Model Number for Which Designed: 400; Special Features: INCLUDES: O-RING 1; U-SCRAPER 1; Features Provided: GROOVED. 4 total characteristics are documented in the Federal Logistics Information System.