PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

206021O-Ring

Cummins Inc. · NSN 5331-01-178-1760 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-178-1760 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-178-1760. Primary manufacturer part number: 206021.
Features
  • O-Ring — FSC 5331
  • 1 verified cross-reference
  • Primary manufacturer: Cummins Inc.
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-178-1760, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Cummins Inc.. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersCummins Inc. (CAGE 15434)
Technical Specifications
ParameterValue
NSN5331-01-178-1760
Primary Part Number206021
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerCummins Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5970-01-353-899320602-3 INTERCHANGEABLE
Insulator,plate
Advanced Conversion Technology Inc Div Advanced Conversion Technology
6150-01-496-105820602-1 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Audio Technologies Inc
5895-01-533-622420-602-1 INTERCHANGEABLE
Amplifier-Control Group
L3 Technologies, Inc.
1650-01-630-750920602-1 INTERCHANGEABLE
Galley Pallet
Knight Aerospace Products, Inc.
Cross-Reference Index
Part NumberManufacturer
206021 Cummins Inc. (USA)
Related Parts
5970-01-353-8993INTERCHANGEABLE
INSULATOR,PLATE
20602-3
6150-01-496-1058INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
20602-1
5895-01-533-6224INTERCHANGEABLE
AMPLIFIER-CONTROL GROUP
20-602-1
1650-01-630-7509INTERCHANGEABLE
GALLEY PALLET
20602-1

Frequently Asked Questions

What is NSN 5331-01-178-1760?

NSN 5331-01-178-1760 is a O-Ring, manufactured by Cummins Inc., classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-178-1760?

NSN 5331-01-178-1760 has 1 cross-referenced part number: 206021 (Cummins Inc.).

What NSN replaces 5331-01-178-1760?

There are 4 known substitutes for 5331-01-178-1760: 5970-01-353-8993, 6150-01-496-1058, 5895-01-533-6224 and 1 more. Verify interchangeability with system specifications before substitution.

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