PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

012O-Ring

Clausing Industrial, Inc. Dba Clausing Service Center Div Clausing Service Center · NSN 5331-01-284-3727 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-284-3727 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-284-3727. Primary manufacturer part number: 012.
Features
  • O-Ring — FSC 5331
  • 3 verified cross-references
  • Primary manufacturer: Clausing Industrial, Inc. Dba Clausing Service Center Div Clausing Service Center
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-284-3727, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Clausing Industrial, Inc. Dba Clausing Service Center Div Clausing Service Center. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersClausing Service Ctr (CAGE 6QUL0); Startrite Inc (CAGE 7W681); Clausing Industrial, Inc. Dba Clausing Service Center Div Clausing Service Center (CAGE 1V923)
Technical Specifications
ParameterValue
NSN5331-01-284-3727
Primary Part Number012
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerClausing Industrial, Inc. Dba Clausing Service Center Div Clausing Service Center
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-156-1726 INTERCHANGEABLE
Bearing,ball,thrust
5133-00-189-9257 INTERCHANGEABLE
Drill,twist
6685-00-243-5367 INTERCHANGEABLE
Recorder,temperature
6810-00-264-5906014 INTERCHANGEABLE
Ethyl Alcohol,absolute
Greenfield Global Usa Inc Dba Pharmco-Aaper or Pharmco-Aaper
5110-00-293-0089 INTERCHANGEABLE
Shears,metal Cutting,hand
5120-00-293-047930007 INTERCHANGEABLE
Caulking Tool,hand
Mephisto Tool Co Inc
5330-00-412-2897 INTERCHANGEABLE
Packing,preformed
5950-00-518-1135 INTERCHANGEABLE
Transformer,audio Frequency
5305-00-638-23730-12 INTERCHANGEABLE
Screw,machine
Honeywell Intl Inc Defense Avionics Systems
5920-01-091-8966 INTERCHANGEABLE
Protector,telephone
Cross-Reference Index
Part NumberManufacturer
012 Clausing Service Ctr (USA)
012 Startrite Inc (USA)
012 PRIMARY Clausing Industrial, Inc. Dba Clausing Service Center Div Clausing Service Center (USA)
Related Parts
3110-00-156-1726INTERCHANGEABLE
BEARING,BALL,THRUST
5133-00-189-9257INTERCHANGEABLE
DRILL,TWIST
6685-00-243-5367INTERCHANGEABLE
RECORDER,TEMPERATURE
6810-00-264-5906INTERCHANGEABLE
ETHYL ALCOHOL,ABSOLUTE
014
5110-00-293-0089INTERCHANGEABLE
SHEARS,METAL CUTTING,HAND
5120-00-293-0479INTERCHANGEABLE
CAULKING TOOL,HAND
30007
5330-00-412-2897INTERCHANGEABLE
PACKING,PREFORMED
5950-00-518-1135INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5305-00-638-2373INTERCHANGEABLE
SCREW,MACHINE
0-12
5920-01-091-8966INTERCHANGEABLE
PROTECTOR,TELEPHONE
5360-01-269-7445INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5930-01-301-8143INTERCHANGEABLE
SWITCH,SLIDE
012

Frequently Asked Questions

What is NSN 5331-01-284-3727?

NSN 5331-01-284-3727 is a O-Ring, manufactured by Clausing Industrial, Inc. Dba Clausing Service Center Div Clausing Service Center, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-284-3727?

NSN 5331-01-284-3727 has 3 cross-referenced part numbers: 012 (Clausing Service Ctr), 012 (Startrite Inc), 012 (Clausing Industrial, Inc. Dba Clausing Service Center Div Clausing Service Center).

What NSN replaces 5331-01-284-3727?

There are 12 known substitutes for 5331-01-284-3727: 3110-00-156-1726, 5133-00-189-9257, 6685-00-243-5367 and 9 more. Verify interchangeability with system specifications before substitution.

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