PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2100-22O-Ring

Kearflex Engineering Company · NSN 5331-00-482-2801 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-482-2801 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-482-2801. Primary manufacturer part number: 2100-22.
Features
  • O-Ring — FSC 5331
  • Center Hole Diameter: 0.438 INCHES NOMINAL IN
  • Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
  • Material: RUBBER SILICONE CLASS Q
  • 2 verified cross-references
  • Primary manufacturer: Kearflex Engineering Company
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Silicone Class Q construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-482-2801, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Kearflex Engineering Company. 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-00-482-2801
Primary Part Number2100-22
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerKearflex Engineering Company
StatusACTIVE
Center Hole Diameter0.438 INCHES NOMINAL IN
Cross-Sectional Height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
MaterialRUBBER SILICONE CLASS Q
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5940-00-082-5002 INTERCHANGEABLE
Terminal,stud
5961-00-158-4796 INTERCHANGEABLE
Semiconductor Device,diode
1610-00-303-6806 INTERCHANGEABLE
Base Governor
5325-00-804-2027 INTERCHANGEABLE
Ring,retaining
6145-01-618-6859210022-01 INTERCHANGEABLE
Cable,power,electrical
Datapath, Inc. Dba Datapath Inc
Cross-Reference Index
Part NumberManufacturer
2100-22 PRIMARY Kearflex Engineering Company (USA)
10163298 Nimikkeistokeskus Ncb Finland (FIN)
Related Parts
5940-00-082-5002INTERCHANGEABLE
TERMINAL,STUD
5961-00-158-4796INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
1610-00-303-6806INTERCHANGEABLE
BASE GOVERNOR
5325-00-804-2027INTERCHANGEABLE
RING,RETAINING
6145-01-618-6859INTERCHANGEABLE
CABLE,POWER,ELECTRICAL
210022-01

Frequently Asked Questions

What is NSN 5331-00-482-2801?

NSN 5331-00-482-2801 is a O-Ring, manufactured by Kearflex Engineering Company, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-482-2801?

NSN 5331-00-482-2801 has 2 cross-referenced part numbers: 2100-22 (Kearflex Engineering Company), 10163298 (Nimikkeistokeskus Ncb Finland).

What NSN replaces 5331-00-482-2801?

There are 5 known substitutes for 5331-00-482-2801: 5940-00-082-5002, 5961-00-158-4796, 1610-00-303-6806 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2100-22?

Key specifications for 2100-22: Center Hole Diameter: 0.438 INCHES NOMINAL IN; Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Material: RUBBER SILICONE CLASS Q. 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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