The Valve,butterfly, cataloged under National Stock Number 4820-01-201-2309, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Dover Resources, Inc. Div Norriseal. Government technical data includes 3 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-201-2309 |
| Primary Part Number | 911B381 |
| Item Name | Valve,butterfly |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Dover Resources, Inc. Div Norriseal |
| Status | ACTIVE |
| Valve Operation Method | MANUALMANUAL |
| Valve Size | 2.500 INCHES2.500 INCHES IN |
| Material | BRONZE BODY |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-01-201-2309 is a Valve,butterfly, manufactured by Dover Resources, Inc. Div Norriseal, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-201-2309 has 3 cross-referenced part numbers: 911-381 (Norriseal Norris Values Div Dba Dover Co), 911B381 (Dover Resources, Inc. Div Norriseal), 911B381 (Norriseal Norris Values Div Dba Dover Co).
There are 2 known substitutes for 4820-01-201-2309: 5950-00-232-4866, 4820-01-203-1127. Verify interchangeability with system specifications before substitution.
Key specifications for 911B381: Valve Operation Method: MANUALMANUAL; Valve Size: 2.500 INCHES2.500 INCHES IN; Material: BRONZE BODY. 3 total characteristics are documented in the Federal Logistics Information System.