PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2-64049O-Ring

Barnstead Thermolyne Corporation Dba Barnstead International Div Laboratory Equipment · NSN 5331-01-457-9689 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-457-9689 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-457-9689. Primary manufacturer part number: 2-64049.
Features
  • O-Ring — FSC 5331
  • 2 verified cross-references
  • Primary manufacturer: Barnstead Thermolyne Corporation Dba Barnstead International Div Laboratory Equipment
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-457-9689, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Barnstead Thermolyne Corporation Dba Barnstead International Div Laboratory Equipment. 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.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersBarnstead Thermolyne Corporation Dba Barnstead International Div Laboratory Equipment (CAGE 05852); Getinge Usa Inc (CAGE 32510)
Technical Specifications
ParameterValue
NSN5331-01-457-9689
Primary Part Number2-64049
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerBarnstead Thermolyne Corporation Dba Barnstead International Div Laboratory Equipment
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5310-00-022-00811B4331 INTERCHANGEABLE
Nut,plain,hexagon
Caterpillar Inc Div Caterpillar Defense
5360-00-327-081464049 INTERCHANGEABLE
Spring,helical,compression
Hiller Aircraft Corporation
6665-00-887-9542640-49 INTERCHANGEABLE
Edison Thermostat
Unicontrol Inc Hays Cleveland Div
5340-01-205-5711 INTERCHANGEABLE
Plate,mending
5120-01-581-5833 INTERCHANGEABLE
Wrench,torque
Cross-Reference Index
Part NumberManufacturer
2-64049 Barnstead Thermolyne Corporation Dba Barnstead International Div Laboratory Equipment (USA)
64049 Getinge Usa Inc (USA)
Related Parts
5310-00-022-0081INTERCHANGEABLE
NUT,PLAIN,HEXAGON
1B4331
5360-00-327-0814INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
64049
6665-00-887-9542INTERCHANGEABLE
EDISON THERMOSTAT
640-49
5340-01-205-5711INTERCHANGEABLE
PLATE,MENDING
5120-01-581-5833INTERCHANGEABLE
WRENCH,TORQUE

Frequently Asked Questions

What is NSN 5331-01-457-9689?

NSN 5331-01-457-9689 is a O-Ring, manufactured by Barnstead Thermolyne Corporation Dba Barnstead International Div Laboratory Equipment, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-457-9689?

NSN 5331-01-457-9689 has 2 cross-referenced part numbers: 2-64049 (Barnstead Thermolyne Corporation Dba Barnstead International Div Laboratory Equipment), 64049 (Getinge Usa Inc).

What NSN replaces 5331-01-457-9689?

There are 5 known substitutes for 5331-01-457-9689: 5310-00-022-0081, 5360-00-327-0814, 6665-00-887-9542 and 2 more. Verify interchangeability with system specifications before substitution.

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