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APR568-218MILR2 5987

View detailed technical data, stock status, and sourcing information for: APR568-218MILR2 5987

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APR568-218MILR2 5987
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5331 O-Ring
National Stock Number
5331-00-166-8405
Item Name Code
47946
Assigment Date
11/19/1971 (54 years ago)

A nonmetallic circular item with an aperature, having a solid round cross-section. They are used primarily for sealing. For items with other than round cross section, see packing,preformed. For noncircular items with a round cross-section, see seal,nonmetallic round section and rubber,round section.

75.0 shore durometer a nominal hardness rating, 125 maximum elongation percentage, 0.135 inches minimum and 0.143 inches maximum cross-sectional height, 1.222 inches minimum and 1.246 inches maximum center hole diameter, 1.492 inches minimum and 1.532 inches maximum outside diameter

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Outside Diameter
1.492 inches minimum and 1.532 inches maximum
Cross-Sectional Height
0.135 inches minimum and 0.143 inches maximum
Center Hole Diameter
1.222 inches minimum and 1.246 inches maximum
Elongation Percentage
125 maximum
Hardness Rating
75.0 shore durometer a nominal
Material
rubber fluorocarbon class fpm

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5330-00-461-3179 No Name Available 07/01/1985
5330-00-954-7084 No Name Available 04/01/1984
5330-00-982-6554 No Name Available 05/01/1985
5330-01-308-4241 No Name Available 01/01/1992
5330-01-386-0587 No Name Available 06/01/1997
5330-01-418-2327 No Name Available 06/01/1996
5331-01-464-8539 No Name Available 03/01/2002
5330-01-475-6348 No Name Available 05/01/2003

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5331-00-166-8405?
The FSCG of the NSN 5331-00-166-8405 is 5331
Does the NSN 5331-00-166-8405 have a Schedule B code assigned?
Yes, the Schedule B code is 4016930000
Does NSN 5331-00-166-8405 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 5331-00-166-8405 contain precious materials?
Item does not contain precious metal.
Does NSN 5331-00-166-8405 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 5331-00-166-8405 was assigned to the Federal Catalog?
It was assigned 54 years ago, on Fri, Nov 19, 1971

Professional Distribution

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Pricing

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ITAR Registered

In Stock

This item is currently available and ready for prompt shipment. Units may be offered in various conditions — new, surplus, or refurbished — and stored at verified global facilities. Request a quote to confirm current stock and delivery time.

New Material 1,775
New Surplus 569
Overhauled 1
As Removed 8
Serviceable 27
Total 2,380
Availability of this item was last updated on: 05/23/2026 02:05 PM EDT. Stock levels and pricing are subject to change.

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