PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

550185O-Ring

Paratech Inc · NSN 5331-01-408-7133 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-408-7133 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-408-7133. Primary manufacturer part number: 550185.
Features
  • O-Ring — FSC 5331
  • 1 verified cross-reference
  • Primary manufacturer: Paratech Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-408-7133, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Paratech Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersParatech Inc (CAGE 30978)
Technical Specifications
ParameterValue
NSN5331-01-408-7133
Primary Part Number550185
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerParatech Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3110-00-100-3551 INTERCHANGEABLE
Cone and Rollers,tapered Roller
5940-00-552-202432051 INTERCHANGEABLE
Terminal,lug
Te Connectivity Corporation
Cross-Reference Index
Part NumberManufacturer
550185 PRIMARY Paratech Inc (USA)
Related Parts
3110-00-100-3551INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
5940-00-552-2024INTERCHANGEABLE
TERMINAL,LUG
32051

Frequently Asked Questions

What is NSN 5331-01-408-7133?

NSN 5331-01-408-7133 is a O-Ring, manufactured by Paratech Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-408-7133?

NSN 5331-01-408-7133 has 1 cross-referenced part number: 550185 (Paratech Inc).

What NSN replaces 5331-01-408-7133?

There are 2 known substitutes for 5331-01-408-7133: 3110-00-100-3551, 5940-00-552-2024. Verify interchangeability with system specifications before substitution.

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