PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M201399ANO-Ring

Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic · NSN 5331-00-492-8728 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-492-8728 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-492-8728. Primary manufacturer part number: M201399AN.
Features
  • O-Ring — FSC 5331
  • Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
  • Material: RUBBER
  • Center Hole Diameter: 4.719 INCHES MINIMUM AND 4.749 INCHES MAXIMUM IN
  • 2 verified cross-references
  • Primary manufacturer: Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-492-8728, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic. 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-00-492-8728
Primary Part NumberM201399AN
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerTwin Disc, Incorporated Dba Twin Disc Mid-Atlantic
StatusACTIVE
Cross-Sectional Height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
MaterialRUBBER
Center Hole Diameter4.719 INCHES MINIMUM AND 4.749 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5935-00-214-1598 INTERCHANGEABLE
Connector,receptacle,electrical
6685-00-547-1604EB24-3PFPRWB0 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
5962-01-028-6967 INTERCHANGEABLE
Microcircuit,digital
5940-01-065-87872585HX INTERCHANGEABLE
Terminal,lug
Oshkosh Defense Llc
3455-01-148-3615 INTERCHANGEABLE
Blade,circular Saw,metal Cutting
5935-01-190-5487 INTERCHANGEABLE
Connector,receptacle,electrical
5355-01-490-691134-163 INTERCHANGEABLE
Knob Assembly
Triplett (bluffton) Corporation Dba Lfe Instruments
Cross-Reference Index
Part NumberManufacturer
M201399AN PRIMARY Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA)
34163 Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA)
Related Parts
5935-00-214-1598INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
6685-00-547-1604INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
EB24-3PFPRWB0
5962-01-028-6967INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5940-01-065-8787INTERCHANGEABLE
TERMINAL,LUG
2585HX
3455-01-148-3615INTERCHANGEABLE
BLADE,CIRCULAR SAW,METAL CUTTING
5935-01-190-5487INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5355-01-490-6911INTERCHANGEABLE
KNOB ASSEMBLY
34-163

Frequently Asked Questions

What is NSN 5331-00-492-8728?

NSN 5331-00-492-8728 is a O-Ring, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-492-8728?

NSN 5331-00-492-8728 has 2 cross-referenced part numbers: M201399AN (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic), 34163 (Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.).

What NSN replaces 5331-00-492-8728?

There are 7 known substitutes for 5331-00-492-8728: 5935-00-214-1598, 6685-00-547-1604, 5962-01-028-6967 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M201399AN?

Key specifications for M201399AN: Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Material: RUBBER; Center Hole Diameter: 4.719 INCHES MINIMUM AND 4.749 INCHES MAXIMUM IN. 3 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com