PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4-B0140-534B-1QValve,butterfly

Dover Resources, Inc. Div Norriseal · NSN 4820-01-243-1389 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-243-1389 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-243-1389. Primary manufacturer part number: 4-B0140-534B-1Q.
Features
  • Valve,butterfly — FSC 4820
  • Style Designator: STRAIGHT THRU
  • Material: ALUMINUM ALLOY FLOW CONTROL DEVICE
  • Valve Operation Method: MANUAL
  • Material: STEEL COMP 416 STEM
  • Material: ALUMINUM ALLOY BODY
  • 7 verified cross-references
  • Primary manufacturer: Dover Resources, Inc. Div Norriseal
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Aluminum Alloy Flow Control Device construction
General Description

The Valve,butterfly, cataloged under National Stock Number 4820-01-243-1389, 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 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-243-1389
Primary Part Number4-B0140-534B-1Q
Item NameValve,butterfly
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerDover Resources, Inc. Div Norriseal
StatusACTIVE
Style DesignatorSTRAIGHT THRU
MaterialALUMINUM ALLOY FLOW CONTROL DEVICE
Valve Operation MethodMANUAL
MaterialSTEEL COMP 416 STEM
MaterialALUMINUM ALLOY BODY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3110-00-227-4832 INTERCHANGEABLE
Ring,bearing,outer
5330-00-300-7769 INTERCHANGEABLE
Gasket
5930-00-865-162210-352 INTERCHANGEABLE
Contact Assembly,el
Patriot Sensors & Controls Corp Div Measurement & Calibration Technologies
5930-01-157-18638918K1115 INTERCHANGEABLE
Switch,rotary
Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc
Cross-Reference Index
Part NumberManufacturer
56611G102 Norriseal Norris Values Div Dba Dover Co (USA)
4-B0140-534B-1Q Norriseal Norris Values Div Dba Dover Co (USA)
S-462 Dover Resources, Inc. Div Norriseal (USA)
4-B0140-534B-1Q PRIMARY Dover Resources, Inc. Div Norriseal (USA)
4-B0140-534A-1Q Norriseal Norris Values Div Dba Dover Co (USA)
59611Q209 Norriseal Norris Values Div Dba Dover Co (USA)
S-462 Norriseal Norris Values Div Dba Dover Co (USA)
Related Parts
3110-00-227-4832INTERCHANGEABLE
RING,BEARING,OUTER
5330-00-300-7769INTERCHANGEABLE
GASKET
5930-00-865-1622INTERCHANGEABLE
CONTACT ASSEMBLY,EL
10-352
5930-01-157-1863INTERCHANGEABLE
SWITCH,ROTARY
8918K1115

Frequently Asked Questions

What is NSN 4820-01-243-1389?

NSN 4820-01-243-1389 is a Valve,butterfly, manufactured by Dover Resources, Inc. Div Norriseal, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-243-1389?

NSN 4820-01-243-1389 has 7 cross-referenced part numbers: 56611G102 (Norriseal Norris Values Div Dba Dover Co), 4-B0140-534B-1Q (Norriseal Norris Values Div Dba Dover Co), S-462 (Dover Resources, Inc. Div Norriseal), 4-B0140-534B-1Q (Dover Resources, Inc. Div Norriseal), 4-B0140-534A-1Q (Norriseal Norris Values Div Dba Dover Co) and 2 more.

What NSN replaces 4820-01-243-1389?

There are 4 known substitutes for 4820-01-243-1389: 3110-00-227-4832, 5330-00-300-7769, 5930-00-865-1622 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4-B0140-534B-1Q?

Key specifications for 4-B0140-534B-1Q: Style Designator: STRAIGHT THRU; Material: ALUMINUM ALLOY FLOW CONTROL DEVICE; Valve Operation Method: MANUAL; Material: STEEL COMP 416 STEM. 6 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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