PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20455O-Ring

Westerbeke Corporation · NSN 5331-01-582-7610 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-582-7610 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-582-7610. Primary manufacturer part number: 20455.
Features
  • O-Ring — FSC 5331
  • 2 verified cross-references
  • Primary manufacturer: Westerbeke Corporation
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-582-7610, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Westerbeke 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.

Technical Specifications
ParameterValue
NSN5331-01-582-7610
Primary Part Number20455
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerWesterbeke Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5930-00-072-6939 INTERCHANGEABLE
Switch,rotary
5920-00-131-981931301-6 INTERCHANGEABLE
Fuse,cartridge
Littelfuse, Inc.
1680-00-673-3198W20455 INTERCHANGEABLE
Spacer,windshield W
Emerson Electric Co Alco Controls Div
5970-00-832-4298 INTERCHANGEABLE
Tape,insulation,electrical
5130-01-356-877020455 INTERCHANGEABLE
Brush,wire,rotary End
Pferd Milwaukee Brush Co Inc
Cross-Reference Index
Part NumberManufacturer
20455 PRIMARY Westerbeke Corporation (USA)
54371 ITEM 4 Westerbeke Corporation (USA)
Related Parts
5930-00-072-6939INTERCHANGEABLE
SWITCH,ROTARY
5920-00-131-9819INTERCHANGEABLE
FUSE,CARTRIDGE
31301-6
1680-00-673-3198INTERCHANGEABLE
SPACER,WINDSHIELD W
W20455
5970-00-832-4298INTERCHANGEABLE
TAPE,INSULATION,ELECTRICAL
5130-01-356-8770INTERCHANGEABLE
BRUSH,WIRE,ROTARY END
20455

Frequently Asked Questions

What is NSN 5331-01-582-7610?

NSN 5331-01-582-7610 is a O-Ring, manufactured by Westerbeke Corporation, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-582-7610?

NSN 5331-01-582-7610 has 2 cross-referenced part numbers: 20455 (Westerbeke Corporation), 54371 ITEM 4 (Westerbeke Corporation).

What NSN replaces 5331-01-582-7610?

There are 5 known substitutes for 5331-01-582-7610: 5930-00-072-6939, 5920-00-131-9819, 1680-00-673-3198 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20455?

Key specifications for 20455: End Item Identification: GENERATOR SET (INLS) CREW SHELTER. 1 total characteristics are documented in the Federal Logistics Information System.

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