PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

83573O-Ring

Eaton Aerospace Llc Dba Eaton Aerospace Jackson · NSN 5331-01-397-5080 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-397-5080 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-397-5080. Primary manufacturer part number: 83573.
Features
  • O-Ring — FSC 5331
  • 3 verified cross-references
  • Primary manufacturer: Eaton Aerospace Llc Dba Eaton Aerospace Jackson
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-397-5080, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Eaton Aerospace Llc Dba Eaton Aerospace Jackson. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersOntic Engineering & Manufacturing, Inc Dba Ontic Us (CAGE 45934); Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator (CAGE 09790); Eaton Aerospace Llc Dba Eaton Aerospace Jackson (CAGE 99643)
Technical Specifications
ParameterValue
NSN5331-01-397-5080
Primary Part Number83573
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerEaton Aerospace Llc Dba Eaton Aerospace Jackson
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5935-01-105-843631-8357-16 INTERCHANGEABLE
Connector,plug,electrical
Amphenol Corporation Div Amphenol Rf
Cross-Reference Index
Part NumberManufacturer
83573 Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA)
83573 Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator (USA)
83573 PRIMARY Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
Related Parts
5935-01-105-8436INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
31-8357-16

Frequently Asked Questions

What is NSN 5331-01-397-5080?

NSN 5331-01-397-5080 is a O-Ring, manufactured by Eaton Aerospace Llc Dba Eaton Aerospace Jackson, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-397-5080?

NSN 5331-01-397-5080 has 3 cross-referenced part numbers: 83573 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us), 83573 (Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator), 83573 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson).

What NSN replaces 5331-01-397-5080?

There is 1 known substitute for 5331-01-397-5080: 5935-01-105-8436. Verify interchangeability with system specifications before substitution.

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