PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

43537Ring Set,piston

Eaton Aerospace Llc Dba Eaton Aerospace Jackson · NSN 3040-01-342-2915 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-01-342-2915 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-342-2915. Primary manufacturer part number: 43537.
Features
  • Ring Set,piston — FSC 3040
  • Piston Accommodation Quantity: 2
  • Ring Set Component Parts: PISTON RINGS 43537,99643,2;EXPANDER,1
  • Standard Bore Diameter: 1.056 INCHES IN
  • Bore Diameter Oversize: 0.004 INCHES IN
  • 1 verified cross-reference
  • Primary manufacturer: Eaton Aerospace Llc Dba Eaton Aerospace Jackson
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ring Set,piston, cataloged under National Stock Number 3040-01-342-2915, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Eaton Aerospace Llc Dba Eaton Aerospace Jackson. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-01-342-2915
Primary Part Number43537
Item NameRing Set,piston
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerEaton Aerospace Llc Dba Eaton Aerospace Jackson
StatusACTIVE
Piston Accommodation Quantity2
Ring Set Component PartsPISTON RINGS 43537,99643,2;EXPANDER,1
Standard Bore Diameter1.056 INCHES IN
Bore Diameter Oversize0.004 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5950-01-025-2268792536-1 INTERCHANGEABLE
Transformer,power
Raytheon Company Dba Raytheon
5120-01-398-766100943537000 INTERCHANGEABLE
Extension,socket Wrench
Sears, Roebuck and Co. Dba Sears Div Sears Commercial
3455-01-602-998143-537 INTERCHANGEABLE
Reamer,machine
Pan American Tool Corp
Cross-Reference Index
Part NumberManufacturer
43537 PRIMARY Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
Related Parts
5950-01-025-2268INTERCHANGEABLE
TRANSFORMER,POWER
792536-1
5120-01-398-7661INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
00943537000
3455-01-602-9981INTERCHANGEABLE
REAMER,MACHINE
43-537

Frequently Asked Questions

What is NSN 3040-01-342-2915?

NSN 3040-01-342-2915 is a Ring Set,piston, manufactured by Eaton Aerospace Llc Dba Eaton Aerospace Jackson, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-01-342-2915?

NSN 3040-01-342-2915 has 1 cross-referenced part number: 43537 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson).

What NSN replaces 3040-01-342-2915?

There are 3 known substitutes for 3040-01-342-2915: 5950-01-025-2268, 5120-01-398-7661, 3455-01-602-9981. Verify interchangeability with system specifications before substitution.

What are the specifications of 43537?

Key specifications for 43537: Piston Accommodation Quantity: 2; Ring Set Component Parts: PISTON RINGS 43537,99643,2;EXPANDER,1; Standard Bore Diameter: 1.056 INCHES IN; Bore Diameter Oversize: 0.004 INCHES IN. 5 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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