PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

500392Piston Assy

Tavco, Inc. Div Williams Aerospace & Manufacturing Inc. · NSN 3040-01-258-8902 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-01-258-8902 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-258-8902. Primary manufacturer part number: 500392.
Features
  • Piston Assy — FSC 3040
  • 1 verified cross-reference
  • Primary manufacturer: Tavco, Inc. Div Williams Aerospace & Manufacturing Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Piston Assy, cataloged under National Stock Number 3040-01-258-8902, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Tavco, Inc. Div Williams Aerospace & Manufacturing Inc.. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NamePiston Assy
FSC / FSG3040 — No Item Name Available (FSG 30)
ManufacturersTavco, Inc. Div Williams Aerospace & Manufacturing Inc. (CAGE 99221)
Technical Specifications
ParameterValue
NSN3040-01-258-8902
Primary Part Number500392
Item NamePiston Assy
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerTavco, Inc. Div Williams Aerospace & Manufacturing Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5315-00-051-6610 INTERCHANGEABLE
Key,machine
3110-00-555-5339 INTERCHANGEABLE
Bearing,ball,annular
5306-00-738-28767382876 INTERCHANGEABLE
Bolt,externally Relieved Body
U S Army Tank Automotive Command Amsta-Im-Mm
4910-01-223-5695500-396-01 INTERCHANGEABLE
Testing Instrument
Hiab Usa Inc
4010-01-307-5020 INTERCHANGEABLE
Wire Rope Assembly,single Leg
Cross-Reference Index
Part NumberManufacturer
500392 PRIMARY Tavco, Inc. Div Williams Aerospace & Manufacturing Inc. (USA)
Related Parts
5315-00-051-6610INTERCHANGEABLE
KEY,MACHINE
3110-00-555-5339INTERCHANGEABLE
BEARING,BALL,ANNULAR
5306-00-738-2876INTERCHANGEABLE
BOLT,EXTERNALLY RELIEVED BODY
7382876
4910-01-223-5695INTERCHANGEABLE
TESTING INSTRUMENT
500-396-01
4010-01-307-5020INTERCHANGEABLE
WIRE ROPE ASSEMBLY,SINGLE LEG

Frequently Asked Questions

What is NSN 3040-01-258-8902?

NSN 3040-01-258-8902 is a Piston Assy, manufactured by Tavco, Inc. Div Williams Aerospace & Manufacturing Inc., classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-01-258-8902?

NSN 3040-01-258-8902 has 1 cross-referenced part number: 500392 (Tavco, Inc. Div Williams Aerospace & Manufacturing Inc.).

What NSN replaces 3040-01-258-8902?

There are 5 known substitutes for 3040-01-258-8902: 5315-00-051-6610, 3110-00-555-5339, 5306-00-738-2876 and 2 more. Verify interchangeability with system specifications before substitution.

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