The Valve,butterfly, cataloged under National Stock Number 4820-01-050-1281, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Norriseal Norris Values Div Dba Dover Co. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references 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 | 4820-01-050-1281 |
| Primary Part Number | 1025876 |
| Item Name | Valve,butterfly |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Norriseal Norris Values Div Dba Dover Co |
| Status | ACTIVE |
| Material | NICKEL ALLOY 400 STEM |
| Style Designator | STRAIGHT THRU |
| Material | COPPER ALLOY 922 BODY |
| Valve Operation Method | MANUAL |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT |
| Minimum Operating Temp | -30.0 FAHRENHEIT DEGF |
| Material Document and Classification | ASTM B164 CLASS A ASSN STD SINGLE MATERIAL RESPONSE SEAT |
| Material Document and Classification | ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Features Provided | MANUAL OVERRIDE |
| Valve Size | 5.000 INCHES IN |
| Maximum Operating Temp | 250.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Material | NICKEL ALLOY FLOW CONTROL DEVICE |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Material Document and Classification | QQ-N-288 COMP A OR E FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Operating Pressure | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| R2030-64AA-1FM | Norriseal Norris Values Div Dba Dover Co (USA) |
| 59201F550 | Norriseal Norris Values Div Dba Dover Co (USA) |
| 910-082-5IN | Norriseal Norris Values Div Dba Dover Co (USA) |
| 1035131 | Norriseal Norris Values Div Dba Dover Co (USA) |
| 1025876 PRIMARY | Norriseal Norris Values Div Dba Dover Co (USA) |
| 5R2030-64AA-1FM | Norriseal Norris Values Div Dba Dover Co (USA) |
| R2030-64AA-2KM | Norriseal Norris Values Div Dba Dover Co (USA) |
| 5R2030-64AIC | Norriseal Norris Values Div Dba Dover Co (USA) |
NSN 4820-01-050-1281 is a Valve,butterfly, manufactured by Norriseal Norris Values Div Dba Dover Co, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-050-1281 has 8 cross-referenced part numbers: R2030-64AA-1FM (Norriseal Norris Values Div Dba Dover Co), 59201F550 (Norriseal Norris Values Div Dba Dover Co), 910-082-5IN (Norriseal Norris Values Div Dba Dover Co), 1035131 (Norriseal Norris Values Div Dba Dover Co), 1025876 (Norriseal Norris Values Div Dba Dover Co) and 3 more.
There are 2 known substitutes for 4820-01-050-1281: 4820-01-088-0814, 4820-01-189-5745. Verify interchangeability with system specifications before substitution.
Key specifications for 1025876: Material: NICKEL ALLOY 400 STEM; Style Designator: STRAIGHT THRU; Material: COPPER ALLOY 922 BODY; Valve Operation Method: MANUAL. 16 total characteristics are documented in the Federal Logistics Information System.