PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20-15-1416O-Ring

Caro, Inc. Dba South Bend Lathe · NSN 5331-01-475-2744 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-475-2744 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-475-2744. Primary manufacturer part number: 20-15-1416.
Features
  • O-Ring — FSC 5331
  • Cross-Sectional Height: 2.50 MILLIMETERS NOMINAL MM
  • Center Hole Diameter: 18.0 MILLIMETERS NOMINAL MM
  • Material: RUBBER SYNTHETIC
  • 2 verified cross-references
  • Primary manufacturer: Caro, Inc. Dba South Bend Lathe
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Synthetic construction
General Description

The O-Ring, cataloged under National Stock Number 5331-01-475-2744, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Caro, Inc. Dba South Bend Lathe. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-475-2744
Primary Part Number20-15-1416
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerCaro, Inc. Dba South Bend Lathe
StatusACTIVE
Cross-Sectional Height2.50 MILLIMETERS NOMINAL MM
Center Hole Diameter18.0 MILLIMETERS NOMINAL MM
MaterialRUBBER SYNTHETIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5315-00-238-7157P18 INTERCHANGEABLE
Pin,grooved,headless
Contraves Inc
5670-00-388-7153P18 INTERCHANGEABLE
Partition Panel,wire
Figgie Intl Inc Spaceguard Div
3040-00-400-3077AC250 INTERCHANGEABLE
Clamp,hub
Dynaco Gears Inc
5120-00-529-3101 INTERCHANGEABLE
Screwdriver,cross Tip
5999-00-672-9226P18 INTERCHANGEABLE
Heater,thermal Release
Rockwell Automation, Inc. Dba Rockwell Automation
4730-00-702-6932SAE J531 8 130109AC INTERCHANGEABLE
Plug,pipe
Sae International Dba Sae International
5340-00-826-5984P18 INTERCHANGEABLE
Plug,protective,dust and Moistur
Caplugs Llc Dba Mokon Div Caplugs
4320-01-015-9422P-18 INTERCHANGEABLE
Pump,hydraulic Ram,hand Driven
Enerpac Tool Group Corp
5210-01-102-5394P18 INTERCHANGEABLE
Gage,indicating,internal
Service Diamond Tool Co
4330-01-154-80990155018 P18 INTERCHANGEABLE
Filter Element,fluid
Allied Witan Co Dba Alwitco
Cross-Reference Index
Part NumberManufacturer
P18 Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA)
20-15-1416 PRIMARY Caro, Inc. Dba South Bend Lathe (USA)
Related Parts
5315-00-238-7157INTERCHANGEABLE
PIN,GROOVED,HEADLESS
P18
5670-00-388-7153INTERCHANGEABLE
PARTITION PANEL,WIRE
P18
3040-00-400-3077INTERCHANGEABLE
CLAMP,HUB
AC250
5120-00-529-3101INTERCHANGEABLE
SCREWDRIVER,CROSS TIP
5999-00-672-9226INTERCHANGEABLE
HEATER,THERMAL RELEASE
P18
4730-00-702-6932INTERCHANGEABLE
PLUG,PIPE
SAE J531 8 130109AC
5340-00-826-5984INTERCHANGEABLE
PLUG,PROTECTIVE,DUST AND MOISTUR
P18
4320-01-015-9422INTERCHANGEABLE
PUMP,HYDRAULIC RAM,HAND DRIVEN
P-18
5210-01-102-5394INTERCHANGEABLE
GAGE,INDICATING,INTERNAL
P18
4330-01-154-8099INTERCHANGEABLE
FILTER ELEMENT,FLUID
0155018 P18
5120-01-325-8510INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
5440-01-656-2472INTERCHANGEABLE
LADDER,EXTENSION
P-18

Frequently Asked Questions

What is NSN 5331-01-475-2744?

NSN 5331-01-475-2744 is a O-Ring, manufactured by Caro, Inc. Dba South Bend Lathe, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-475-2744?

NSN 5331-01-475-2744 has 2 cross-referenced part numbers: P18 (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division), 20-15-1416 (Caro, Inc. Dba South Bend Lathe).

What NSN replaces 5331-01-475-2744?

There are 12 known substitutes for 5331-01-475-2744: 5315-00-238-7157, 5670-00-388-7153, 3040-00-400-3077 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20-15-1416?

Key specifications for 20-15-1416: Cross-Sectional Height: 2.50 MILLIMETERS NOMINAL MM; Center Hole Diameter: 18.0 MILLIMETERS NOMINAL MM; Material: RUBBER SYNTHETIC. 3 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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