PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

39145Ring,piston

Leroi International Inc Dba Compair Leroi · NSN 4310-01-278-8678 · FSC 4310 · No Item Name Available
Verified by PartsTable
NSN 4310-01-278-8678 — this item is cataloged by the U.S. Government under National Stock Number 4310-01-278-8678. Primary manufacturer part number: 39145.
Features
  • Ring,piston — FSC 4310
  • Radial Wall Thickness: 5.5000 INCHES NOMINAL IN
  • Ring Style: CONCENTRIC
  • 2 verified cross-references
  • Primary manufacturer: Leroi International Inc Dba Compair Leroi
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Ring,piston, cataloged under National Stock Number 4310-01-278-8678, is classified within Federal Supply Class 4310 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Leroi International Inc Dba Compair Leroi. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, 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
NSN4310-01-278-8678
Primary Part Number39145
Item NameRing,piston
FSC / FSG4310 / 43 — No Item Name Available
ManufacturerLeroi International Inc Dba Compair Leroi
StatusACTIVE
Radial Wall Thickness5.5000 INCHES NOMINAL IN
Ring StyleCONCENTRIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5985-00-160-217220-2921 INTERCHANGEABLE
Coupler,rotary,radio Frequency
Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc
6680-01-228-861139145 INTERCHANGEABLE
Transmitter,liquid Quantity
Setra Systems, Inc. Dba Gems Sensors
4520-01-257-219939145 INTERCHANGEABLE
Heating Element,electrical,nonim
Indeeco Llc Dba Indeeco
Cross-Reference Index
Part NumberManufacturer
39145 Compair Kellogg Div of Robertshaw Controls Co (USA)
39145 PRIMARY Leroi International Inc Dba Compair Leroi (USA)
Related Parts
5985-00-160-2172INTERCHANGEABLE
COUPLER,ROTARY,RADIO FREQUENCY
20-2921
6680-01-228-8611INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
39145
4520-01-257-2199INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
39145

Frequently Asked Questions

What is NSN 4310-01-278-8678?

NSN 4310-01-278-8678 is a Ring,piston, manufactured by Leroi International Inc Dba Compair Leroi, classified under FSC 4310 (No Item Name Available). Status: active.

What are the part numbers for NSN 4310-01-278-8678?

NSN 4310-01-278-8678 has 2 cross-referenced part numbers: 39145 (Compair Kellogg Div of Robertshaw Controls Co), 39145 (Leroi International Inc Dba Compair Leroi).

What NSN replaces 4310-01-278-8678?

There are 3 known substitutes for 4310-01-278-8678: 5985-00-160-2172, 6680-01-228-8611, 4520-01-257-2199. Verify interchangeability with system specifications before substitution.

What are the specifications of 39145?

Key specifications for 39145: Radial Wall Thickness: 5.5000 INCHES NOMINAL IN; End Item Identification: COMPAIR KELLOG COMPRESSOR MODEL 462; Ring Style: CONCENTRIC; Overall Width: 0.2500 INCHES NOMINAL IN. 4 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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