The Valve,butterfly, cataloged under National Stock Number 4820-01-340-9951, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-340-9951 |
| Primary Part Number | 1029998 |
| Item Name | Valve,butterfly |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Dover Resources, Inc. Div Norriseal |
| Status | ACTIVE |
| Valve Operation Method | MANUAL |
| Material | STEEL COMP 416 STEM |
| Operating Pressure | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Style Designator | STRAIGHT THRU |
| Minimum Operating Temp | 20.0 FAHRENHEIT DEGF |
| Material Document and Classification | ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | ASTM B148, ALLOY 9C ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Material | COPPER ALLOY 922 BODY |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT |
| Maximum Operating Temp | 180.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Valve Size | 3.000 INCHES IN |
| Material | COPPER ALLOY 954 FLOW CONTROL DEVICE |
| Mounting Facility | LUG(S) |
| Material Document and Classification | AISI 416 ASSN STD SINGLE MATERIAL RESPONSE STEM |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 1029998 PRIMARY | Dover Resources, Inc. Div Norriseal (USA) |
| 3IN R3030-43AA-1FM PRIMARY | Dover Resources, Inc. Div Norriseal (USA) |
| 920E214 | Norriseal Norris Values Div Dba Dover Co (USA) |
| 920-214 | Norriseal Norris Values Div Dba Dover Co (USA) |
| 3IN R3030-43AA-1FM | Norriseal Norris Values Div Dba Dover Co (USA) |
| 920E214 | Dover Resources, Inc. Div Norriseal (USA) |
NSN 4820-01-340-9951 is a Valve,butterfly, manufactured by Dover Resources, Inc. Div Norriseal, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-340-9951 has 6 cross-referenced part numbers: 1029998 (Dover Resources, Inc. Div Norriseal), 3IN R3030-43AA-1FM (Dover Resources, Inc. Div Norriseal), 920E214 (Norriseal Norris Values Div Dba Dover Co), 920-214 (Norriseal Norris Values Div Dba Dover Co), 3IN R3030-43AA-1FM (Norriseal Norris Values Div Dba Dover Co) and 1 more.
There are 3 known substitutes for 4820-01-340-9951: 1650-00-137-6431, 5950-00-204-7982, 5985-00-728-4621. Verify interchangeability with system specifications before substitution.
Key specifications for 1029998: Valve Operation Method: MANUAL; Material: STEEL COMP 416 STEM; Special Features: INCLUDES 10 POSITION THROTTLING HANDLE; Operating Pressure: 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 15 total characteristics are documented in the Federal Logistics Information System.