PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

41870O-Ring

Exlar Corporation · NSN 5331-01-633-6478 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-633-6478 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-633-6478. Primary manufacturer part number: 41870.
Features
  • O-Ring — FSC 5331
  • 2 verified cross-references
  • Primary manufacturer: Exlar Corporation
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-633-6478, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Exlar 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.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersExlar Corporation (CAGE 1KHV0)
Technical Specifications
ParameterValue
NSN5331-01-633-6478
Primary Part Number41870
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerExlar Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5940-00-178-0382858 INTERCHANGEABLE
Terminal Board
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
5310-00-178-96072934P11 INTERCHANGEABLE
Washer,flat
Taylor Machine Works Inc
3120-00-474-331141870 INTERCHANGEABLE
Bushing,sleeve
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
6105-00-974-823741870 INTERCHANGEABLE
Parts Kit,electric Motor
Cunico Corporation
5120-01-696-3277 INTERCHANGEABLE
Flaring Tool,tube,hand
Cross-Reference Index
Part NumberManufacturer
40230 ITEM 621 Exlar Corporation (USA)
41870 PRIMARY Exlar Corporation (USA)
Related Parts
5940-00-178-0382INTERCHANGEABLE
TERMINAL BOARD
858
5310-00-178-9607INTERCHANGEABLE
WASHER,FLAT
2934P11
3120-00-474-3311INTERCHANGEABLE
BUSHING,SLEEVE
41870
6105-00-974-8237INTERCHANGEABLE
PARTS KIT,ELECTRIC MOTOR
41870
5120-01-696-3277INTERCHANGEABLE
FLARING TOOL,TUBE,HAND

Frequently Asked Questions

What is NSN 5331-01-633-6478?

NSN 5331-01-633-6478 is a O-Ring, manufactured by Exlar Corporation, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-633-6478?

NSN 5331-01-633-6478 has 2 cross-referenced part numbers: 40230 ITEM 621 (Exlar Corporation), 41870 (Exlar Corporation).

What NSN replaces 5331-01-633-6478?

There are 5 known substitutes for 5331-01-633-6478: 5940-00-178-0382, 5310-00-178-9607, 3120-00-474-3311 and 2 more. Verify interchangeability with system specifications before substitution.

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