PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

41566O-Ring

Exlar Corporation · NSN 5331-01-633-6477 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-633-6477 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-633-6477. Primary manufacturer part number: 41566.
Features
  • O-Ring — FSC 5331
  • 2 verified cross-references
  • Primary manufacturer: Exlar Corporation
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-633-6477, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Exlar Corporation. This item has 2 commercial cross-references from 1 manufacturer, 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)
ManufacturersExlar Corporation (CAGE 1KHV0)
Technical Specifications
ParameterValue
NSN5331-01-633-6477
Primary Part Number41566
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerExlar Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6930-00-394-024741566 INTERCHANGEABLE
Drum Assembly,numbe
Instruments and Flight Research, Inc.
2915-00-499-75164-156-6 INTERCHANGEABLE
Stem,valve
Parker-Hannifin Corporation Dba Pneutronics
5120-00-937-9733 INTERCHANGEABLE
Tang Breakoff Tool,screw Thread
5962-01-203-727441566 INTERCHANGEABLE
Microcircuit,memory
Raytheon Company Div Rmd Strategic
5330-01-502-535041566 INTERCHANGEABLE
Gasket
Honeywell International, Inc Div Aerospace-Tucson
Cross-Reference Index
Part NumberManufacturer
41566 PRIMARY Exlar Corporation (USA)
40230 ITEM 617 Exlar Corporation (USA)
Related Parts
6930-00-394-0247INTERCHANGEABLE
DRUM ASSEMBLY,NUMBE
41566
2915-00-499-7516INTERCHANGEABLE
STEM,VALVE
4-156-6
5120-00-937-9733INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
5962-01-203-7274INTERCHANGEABLE
MICROCIRCUIT,MEMORY
41566
5330-01-502-5350INTERCHANGEABLE
GASKET
41566

Frequently Asked Questions

What is NSN 5331-01-633-6477?

NSN 5331-01-633-6477 is a O-Ring, manufactured by Exlar Corporation, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-633-6477?

NSN 5331-01-633-6477 has 2 cross-referenced part numbers: 41566 (Exlar Corporation), 40230 ITEM 617 (Exlar Corporation).

What NSN replaces 5331-01-633-6477?

There are 5 known substitutes for 5331-01-633-6477: 6930-00-394-0247, 2915-00-499-7516, 5120-00-937-9733 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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