PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

26-231O-Ring

Ortman Fluid Power Quincy Compressor Div Sub of Coltec Industries Inc · NSN 5331-01-267-6351 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-267-6351 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-267-6351. Primary manufacturer part number: 26-231.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • 1 verified cross-reference
  • Primary manufacturer: Ortman Fluid Power Quincy Compressor Div Sub of Coltec Industries Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr construction
General Description

The O-Ring, cataloged under National Stock Number 5331-01-267-6351, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Ortman Fluid Power Quincy Compressor Div Sub of Coltec Industries Inc. Government technical data includes 1 verified specification, 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-267-6351
Primary Part Number26-231
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerOrtman Fluid Power Quincy Compressor Div Sub of Coltec Industries Inc
StatusACTIVE
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
3455-00-232-904258-10146 INTERCHANGEABLE
Cutter,milling,side
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
2825-00-389-977826231 INTERCHANGEABLE
Lever,governor
Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions
5940-00-519-207526231 INTERCHANGEABLE
Lug
Mission Systems Davenport Inc.
5331-01-097-8242803-1385721-8-4 INTERCHANGEABLE
O-Ring
Naval Sea Systems Command
8030-01-142-9830 INTERCHANGEABLE
Sealing Compound
6680-01-173-32852623-1 INTERCHANGEABLE
Glass,liquid Sight Indicator,fla
Clark-Reliance Llc Dba Jacoby-Tarbox
3120-01-265-8318 INTERCHANGEABLE
Bushing,sleeve
5306-01-503-1742400-26990 ITEM 25 INTERCHANGEABLE
Bolt,machine
Moog Inc. Dba Ampac-Isp Corp
6515-01-598-8690111-001-0055 INTERCHANGEABLE
Stethoscope,electronic
Active Signal Technologies, Inc.
5930-01-630-535326231 INTERCHANGEABLE
Switch,rotary
Mason Electric Co. Dba Mason Controls
Cross-Reference Index
Part NumberManufacturer
26-231 PRIMARY Ortman Fluid Power Quincy Compressor Div Sub of Coltec Industries Inc (USA)
Related Parts
3455-00-232-9042INTERCHANGEABLE
CUTTER,MILLING,SIDE
58-10146
2825-00-389-9778INTERCHANGEABLE
LEVER,GOVERNOR
26231
5940-00-519-2075INTERCHANGEABLE
LUG
26231
5331-01-097-8242INTERCHANGEABLE
O-RING
803-1385721-8-4
8030-01-142-9830INTERCHANGEABLE
SEALING COMPOUND
6680-01-173-3285INTERCHANGEABLE
GLASS,LIQUID SIGHT INDICATOR,FLA
2623-1
3120-01-265-8318INTERCHANGEABLE
BUSHING,SLEEVE
5306-01-503-1742INTERCHANGEABLE
BOLT,MACHINE
400-26990 ITEM 25
6515-01-598-8690INTERCHANGEABLE
STETHOSCOPE,ELECTRONIC
111-001-0055
5930-01-630-5353INTERCHANGEABLE
SWITCH,ROTARY
26231

Frequently Asked Questions

What is NSN 5331-01-267-6351?

NSN 5331-01-267-6351 is a O-Ring, manufactured by Ortman Fluid Power Quincy Compressor Div Sub of Coltec Industries Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-267-6351?

NSN 5331-01-267-6351 has 1 cross-referenced part number: 26-231 (Ortman Fluid Power Quincy Compressor Div Sub of Coltec Industries Inc).

What NSN replaces 5331-01-267-6351?

There are 10 known substitutes for 5331-01-267-6351: 3455-00-232-9042, 2825-00-389-9778, 5940-00-519-2075 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 26-231?

Key specifications for 26-231: Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 1 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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