PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

81831S4105-552717PC9Diaphragm,valve Fla

Naval Ship Systems Command · NSN 2030-00-126-3661 · FSC 2030 · No Item Name Available
Verified by PartsTable
NSN 2030-00-126-3661 — this item is cataloged by the U.S. Government under National Stock Number 2030-00-126-3661. Primary manufacturer part number: 81831S4105-552717PC9.
Features
  • Diaphragm,valve Fla — FSC 2030
  • 12 verified cross-references
  • Primary manufacturer: Naval Ship Systems Command
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Diaphragm,valve Fla, cataloged under National Stock Number 2030-00-126-3661, is classified within Federal Supply Class 2030 (No Item Name Available) of the Ship and Marine Equipment group. The primary manufacturer of record is Naval Ship Systems Command. This item has 12 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameDiaphragm,valve Fla
FSC / FSG2030 — No Item Name Available (FSG 20)
ManufacturersNaval Ship Systems Command (CAGE 80064); Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp (CAGE 82722)
Technical Specifications
ParameterValue
NSN2030-00-126-3661
Primary Part Number81831S4105-552717PC9
Item NameDiaphragm,valve Fla
FSC / FSG2030 / 20 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5960-00-045-5317 INTERCHANGEABLE
Electron Tube
Cross-Reference Index
Part NumberManufacturer
81831S4105-552717PC9 PRIMARY Naval Ship Systems Command (USA)
Y1016B3PC9 PRIMARY Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp (USA)
YT277S4105-574861PC9 PRIMARY Naval Ship Systems Command (USA)
81418S41-404152PC9 PRIMARY Naval Ship Systems Command (USA)
Y1016B5PC9 PRIMARY Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp (USA)
Y1016A3PC9 PRIMARY Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp (USA)
73901 PRIMARY Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp (USA)
E48657PC73901 PRIMARY Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp (USA)
Y1016B2PC9 PRIMARY Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp (USA)
81831S4105-552716PC9 PRIMARY Naval Ship Systems Command (USA)
DE129S4105-241276PC9 PRIMARY Naval Ship Systems Command (USA)
Y1016B1PC9 PRIMARY Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp (USA)
Related Parts
5960-00-045-5317INTERCHANGEABLE
ELECTRON TUBE

Frequently Asked Questions

What is NSN 2030-00-126-3661?

NSN 2030-00-126-3661 is a Diaphragm,valve Fla, manufactured by Naval Ship Systems Command, classified under FSC 2030 (No Item Name Available). Status: active.

What are the part numbers for NSN 2030-00-126-3661?

NSN 2030-00-126-3661 has 12 cross-referenced part numbers: 81831S4105-552717PC9 (Naval Ship Systems Command), Y1016B3PC9 (Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp), YT277S4105-574861PC9 (Naval Ship Systems Command), 81418S41-404152PC9 (Naval Ship Systems Command), Y1016B5PC9 (Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp) and 7 more.

What NSN replaces 2030-00-126-3661?

There is 1 known substitute for 2030-00-126-3661: 5960-00-045-5317. Verify interchangeability with system specifications before substitution.

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