PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

840226Piston Assembly

Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace · NSN 1005-00-397-7428 · FSC 1005 · No Item Name Available
Verified by PartsTable
NSN 1005-00-397-7428 — this item is cataloged by the U.S. Government under National Stock Number 1005-00-397-7428. Primary manufacturer part number: 840226.
Features
  • Piston Assembly — FSC 1005
  • 2 verified cross-references
  • Primary manufacturer: Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Piston Assembly, cataloged under National Stock Number 1005-00-397-7428, is classified within Federal Supply Class 1005 (No Item Name Available) of the Weapons group. The primary manufacturer of record is Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace. This item has 2 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 NamePiston Assembly
FSC / FSG1005 — No Item Name Available (FSG 10)
ManufacturersValcor Engineering Corporation (CAGE 96487); Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (CAGE 78062)
Technical Specifications
ParameterValue
NSN1005-00-397-7428
Primary Part Number840226
Item NamePiston Assembly
FSC / FSG1005 / 10 — No Item Name Available
ManufacturerSargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5330-00-575-62486333 INTERCHANGEABLE
Gasket
Triad Inc
Cross-Reference Index
Part NumberManufacturer
840226 Valcor Engineering Corporation (USA)
840226 PRIMARY Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
Related Parts
5330-00-575-6248INTERCHANGEABLE
GASKET
6333

Frequently Asked Questions

What is NSN 1005-00-397-7428?

NSN 1005-00-397-7428 is a Piston Assembly, manufactured by Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace, classified under FSC 1005 (No Item Name Available). Status: active.

What are the part numbers for NSN 1005-00-397-7428?

NSN 1005-00-397-7428 has 2 cross-referenced part numbers: 840226 (Valcor Engineering Corporation), 840226 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace).

What NSN replaces 1005-00-397-7428?

There is 1 known substitute for 1005-00-397-7428: 5330-00-575-6248. Verify interchangeability with system specifications before substitution.

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