PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

26109O-Ring

Eaton Corporation Dba Eaton Inoac Div Eaton · NSN 5331-01-240-1631 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-240-1631 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-240-1631. Primary manufacturer part number: 26109.
Features
  • O-Ring — FSC 5331
  • 2 verified cross-references
  • Primary manufacturer: Eaton Corporation Dba Eaton Inoac Div Eaton
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-240-1631, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Eaton Corporation Dba Eaton Inoac Div Eaton. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersEaton Corporation Dba Eaton Inoac Div Eaton (CAGE 77842)
Technical Specifications
ParameterValue
NSN5331-01-240-1631
Primary Part Number26109
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerEaton Corporation Dba Eaton Inoac Div Eaton
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5110-00-186-4211 INTERCHANGEABLE
Reamer,hand
3455-00-194-055058-10071 INTERCHANGEABLE
Cutter,milling,side
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
7510-00-285-178726109 INTERCHANGEABLE
Rubber Band
Alliance Rubber Co
2530-00-707-6672F-106355 INTERCHANGEABLE
Parts Kit,hydraulic Brake Master
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
4730-01-193-200426109 INTERCHANGEABLE
Flange,pipe,blind
Leslie Controls, Inc. Dba Leslie Controls Inc
2990-01-227-252926109 INTERCHANGEABLE
Housing,rotor
Stewart & Stevenson Power Products Llc
5120-01-323-8159 INTERCHANGEABLE
Wrench,open End
5325-01-718-411926109 INTERCHANGEABLE
Insert,screw Thread
Jergens Inc Div Tooling Components Division
Cross-Reference Index
Part NumberManufacturer
37B201650P102 Eaton Corporation Dba Eaton Inoac Div Eaton (USA)
26109 PRIMARY Eaton Corporation Dba Eaton Inoac Div Eaton (USA)
Related Parts
5110-00-186-4211INTERCHANGEABLE
REAMER,HAND
3455-00-194-0550INTERCHANGEABLE
CUTTER,MILLING,SIDE
58-10071
7510-00-285-1787INTERCHANGEABLE
RUBBER BAND
26109
2530-00-707-6672INTERCHANGEABLE
PARTS KIT,HYDRAULIC BRAKE MASTER
F-106355
4730-01-193-2004INTERCHANGEABLE
FLANGE,PIPE,BLIND
26109
2990-01-227-2529INTERCHANGEABLE
HOUSING,ROTOR
26109
5120-01-323-8159INTERCHANGEABLE
WRENCH,OPEN END
5325-01-718-4119INTERCHANGEABLE
INSERT,SCREW THREAD
26109

Frequently Asked Questions

What is NSN 5331-01-240-1631?

NSN 5331-01-240-1631 is a O-Ring, manufactured by Eaton Corporation Dba Eaton Inoac Div Eaton, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-240-1631?

NSN 5331-01-240-1631 has 2 cross-referenced part numbers: 37B201650P102 (Eaton Corporation Dba Eaton Inoac Div Eaton), 26109 (Eaton Corporation Dba Eaton Inoac Div Eaton).

What NSN replaces 5331-01-240-1631?

There are 8 known substitutes for 5331-01-240-1631: 5110-00-186-4211, 3455-00-194-0550, 7510-00-285-1787 and 5 more. Verify interchangeability with system specifications before substitution.

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