PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

44313O-Ring

Exlar Corporation · NSN 5331-01-633-5300 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-633-5300 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-633-5300. Primary manufacturer part number: 44313.
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 5331-01-633-5300, 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. 6 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
NSN5331-01-633-5300
Primary Part Number44313
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerExlar Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6510-00-122-9371 INTERCHANGEABLE
Pad,petrolatum and Bismuth Tribr
3655-00-400-23404431-3 INTERCHANGEABLE
Adapter Assembly,tank
Randall Mfg. Co., Inc.
3110-00-554-5417113KSQ6A7 INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
5962-00-595-8504 INTERCHANGEABLE
Microcircuit,digital
2990-00-740-2091 INTERCHANGEABLE
Hub Engine
6730-01-200-8016 INTERCHANGEABLE
Arm Disk,reel
Cross-Reference Index
Part NumberManufacturer
40200 ITEM 226 Exlar Corporation (USA)
44313 PRIMARY Exlar Corporation (USA)
Related Parts
6510-00-122-9371INTERCHANGEABLE
PAD,PETROLATUM AND BISMUTH TRIBR
3655-00-400-2340INTERCHANGEABLE
ADAPTER ASSEMBLY,TANK
4431-3
3110-00-554-5417INTERCHANGEABLE
BEARING,BALL,ANNULAR
113KSQ6A7
5962-00-595-8504INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
2990-00-740-2091INTERCHANGEABLE
HUB ENGINE
6730-01-200-8016INTERCHANGEABLE
ARM DISK,REEL

Frequently Asked Questions

What is NSN 5331-01-633-5300?

NSN 5331-01-633-5300 is a O-Ring, manufactured by Exlar Corporation, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-633-5300?

NSN 5331-01-633-5300 has 2 cross-referenced part numbers: 40200 ITEM 226 (Exlar Corporation), 44313 (Exlar Corporation).

What NSN replaces 5331-01-633-5300?

There are 6 known substitutes for 5331-01-633-5300: 6510-00-122-9371, 3655-00-400-2340, 3110-00-554-5417 and 3 more. Verify interchangeability with system specifications before substitution.

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