PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

44772Ring Set,piston

Leroi International Inc Dba Compair Leroi · NSN 4310-00-777-6682 · FSC 4310 · No Item Name Available
Verified by PartsTable
NSN 4310-00-777-6682 — this item is cataloged by the U.S. Government under National Stock Number 4310-00-777-6682. Primary manufacturer part number: 44772.
Features
  • Ring Set,piston — FSC 4310
  • Ring Set Component Parts: COMPRESSION RING,44476,53239,4,OIL RING,44485,53239,2,COMPRESSION RING,44492,53239,4,OIL RING,44498,53239,2
  • FSC Application Data: AIR COMPRESSOR
  • Piston Accommodation Quantity: 2
  • 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 Set,piston, cataloged under National Stock Number 4310-00-777-6682, 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 3 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4310-00-777-6682
Primary Part Number44772
Item NameRing Set,piston
FSC / FSG4310 / 43 — No Item Name Available
ManufacturerLeroi International Inc Dba Compair Leroi
StatusACTIVE
Ring Set Component PartsCOMPRESSION RING,44476,53239,4,OIL RING,44485,53239,2,COMPRESSION RING,44492,53239,4,OIL RING,44498,53239,2
FSC Application DataAIR COMPRESSOR
Piston Accommodation Quantity2
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5905-00-681-5187598-401-1892608REVBPC30 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Naval Ship Systems Command
5980-01-328-0424 INTERCHANGEABLE
Display,optoelectronic
5330-01-332-00037744772 INTERCHANGEABLE
Gasket
Deutz Corporation
4820-01-551-534444772 INTERCHANGEABLE
Seat,valve
Bourns Inc
Cross-Reference Index
Part NumberManufacturer
44772 Compair Kellogg Div of Robertshaw Controls Co (USA)
44772 PRIMARY Leroi International Inc Dba Compair Leroi (USA)
Related Parts
5905-00-681-5187INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
598-401-1892608REVBPC30
5980-01-328-0424INTERCHANGEABLE
DISPLAY,OPTOELECTRONIC
5330-01-332-0003INTERCHANGEABLE
GASKET
7744772
4820-01-551-5344INTERCHANGEABLE
SEAT,VALVE
44772

Frequently Asked Questions

What is NSN 4310-00-777-6682?

NSN 4310-00-777-6682 is a Ring Set,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 4310-00-777-6682?

NSN 4310-00-777-6682 has 2 cross-referenced part numbers: 44772 (Compair Kellogg Div of Robertshaw Controls Co), 44772 (Leroi International Inc Dba Compair Leroi).

What NSN replaces 4310-00-777-6682?

There are 4 known substitutes for 4310-00-777-6682: 5905-00-681-5187, 5980-01-328-0424, 5330-01-332-0003 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 44772?

Key specifications for 44772: Ring Set Component Parts: COMPRESSION RING,44476,53239,4,OIL RING,44485,53239,2,COMPRESSION RING,44492,53239,4,OIL RING,44498,53239,2; FSC Application Data: AIR COMPRESSOR; Piston Accommodation Quantity: 2. 3 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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