PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4113-20O-Ring

Circor Aerospace, Inc. Dba Circor Aerospace Inc · NSN 5331-00-684-5447 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-684-5447 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-684-5447. Primary manufacturer part number: 4113-20.
Features
  • O-Ring — FSC 5331
  • Center Hole Diameter: 0.544 INCHES MINIMUM AND 0.554 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
  • 2 verified cross-references
  • Primary manufacturer: Circor Aerospace, Inc. Dba Circor Aerospace Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-00-684-5447, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Circor Aerospace, Inc. Dba Circor Aerospace Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-00-684-5447
Primary Part Number4113-20
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerCircor Aerospace, Inc. Dba Circor Aerospace Inc
StatusCANCELLED
Center Hole Diameter0.544 INCHES MINIMUM AND 0.554 INCHES MAXIMUM IN
Cross-Sectional Height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5920-01-285-761821505 INTERCHANGEABLE
Arrester,electrical Surge
Computer Power Solutions
5340-01-380-7913411320 INTERCHANGEABLE
Holder,spring
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump and Power Division
5325-01-528-991750-112-0 INTERCHANGEABLE
Grommet,metallic
Bell Textron Inc
Cross-Reference Index
Part NumberManufacturer
4113-20 PRIMARY Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA)
5011-20 Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA)
Related Parts
5920-01-285-7618INTERCHANGEABLE
ARRESTER,ELECTRICAL SURGE
21505
5340-01-380-7913INTERCHANGEABLE
HOLDER,SPRING
411320
5325-01-528-9917INTERCHANGEABLE
GROMMET,METALLIC
50-112-0

Frequently Asked Questions

What is NSN 5331-00-684-5447?

NSN 5331-00-684-5447 is a O-Ring, manufactured by Circor Aerospace, Inc. Dba Circor Aerospace Inc, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-684-5447?

NSN 5331-00-684-5447 has 2 cross-referenced part numbers: 4113-20 (Circor Aerospace, Inc. Dba Circor Aerospace Inc), 5011-20 (Circor Aerospace, Inc. Dba Circor Aerospace Inc).

What NSN replaces 5331-00-684-5447?

There are 3 known substitutes for 5331-00-684-5447: 5920-01-285-7618, 5340-01-380-7913, 5325-01-528-9917. Verify interchangeability with system specifications before substitution.

What are the specifications of 4113-20?

Key specifications for 4113-20: Center Hole Diameter: 0.544 INCHES MINIMUM AND 0.554 INCHES MAXIMUM IN; Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-684-5447 still in active supply?

NSN 5331-00-684-5447 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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