PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

443123O-Ring

Webasto Thermo & Comfort North America, Inc. Div Webasto Product North America, Inc · NSN 5331-01-284-6648 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-284-6648 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-284-6648. Primary manufacturer part number: 443123.
Features
  • O-Ring — FSC 5331
  • 4 verified cross-references
  • Primary manufacturer: Webasto Thermo & Comfort North America, Inc. Div Webasto Product North America, Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-284-6648, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Webasto Thermo & Comfort North America, Inc. Div Webasto Product North America, Inc. This item has 4 commercial cross-references from 3 manufacturers, 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)
ManufacturersWebasto Thermo & Comfort North America, Inc. Div Webasto Product North America, Inc (CAGE 44MG9); Grove U.s. Llc Dba Grove Us Llc (CAGE 12361); Webasto Thermosystems Inc (CAGE 62380)
Technical Specifications
ParameterValue
NSN5331-01-284-6648
Primary Part Number443123
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerWebasto Thermo & Comfort North America, Inc. Div Webasto Product North America, Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
6685-00-068-8073148074A INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
5998-01-387-1921105779 INTERCHANGEABLE
Circuit Card Assembly
Aimtron Systems, Llc
Cross-Reference Index
Part NumberManufacturer
443123 PRIMARY Webasto Thermo & Comfort North America, Inc. Div Webasto Product North America, Inc (USA)
105.779 Webasto Thermo & Comfort North America, Inc. Div Webasto Product North America, Inc (USA)
9-515-100792 Grove U.s. Llc Dba Grove Us Llc (USA)
105.779 Webasto Thermosystems Inc (USA)
Related Parts
6685-00-068-8073INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
148074A
5998-01-387-1921INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
105779

Frequently Asked Questions

What is NSN 5331-01-284-6648?

NSN 5331-01-284-6648 is a O-Ring, manufactured by Webasto Thermo & Comfort North America, Inc. Div Webasto Product North America, Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-284-6648?

NSN 5331-01-284-6648 has 4 cross-referenced part numbers: 443123 (Webasto Thermo & Comfort North America, Inc. Div Webasto Product North America, Inc), 105.779 (Webasto Thermo & Comfort North America, Inc. Div Webasto Product North America, Inc), 9-515-100792 (Grove U.s. Llc Dba Grove Us Llc), 105.779 (Webasto Thermosystems Inc).

What NSN replaces 5331-01-284-6648?

There are 2 known substitutes for 5331-01-284-6648: 6685-00-068-8073, 5998-01-387-1921. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com