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MIL-STD-81349

O-Ring

This page provides complete and verified information for part number MIL-STD-81349, NSN 5331-01-059-1659

You’ll find detailed technical specifications, product attributes, condition classification, and real-time stock availability. All data is based on official records and meets industry standards for defense, aerospace, and industrial sourcing. Whether you’re performing a parts audit, validating compliance, or preparing a purchase order, this part listing supports accurate and efficient procurement.

MIL-STD-81349
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5331 O-Ring
National Stock Number
5331-01-059-1659
Item Name Code
47946
Assigment Date
04/07/1978 (48 years ago)

A deformable material which prevents the passage of matter through the joint formed when two faces are joined. It may be metallic or nonmetallic, lubricated or impregnated, solid or hollow cross section. It may be made to any predetermined dimension and shape. Excludes:flat disks, items made of felt material and items having joints. For round metal and plastic items with an aperture and a solid rectangular cross section, see washer, flat; shim; bearing, washer, thrust; and spacer ring. Excludes:disk, valve; seal, nonmetallic angle; seal, nonmetallic channel; seal, nonmetallic special shaped section; shielding gasket, electronic; and ring, sealing jar.

rubber synthetic material, 3.210 inches minimum and 3.258 inches maximum center hole diameter, 3.512 inches nominal outside diameter, -40.0 fahrenheit and 212.0 fahrenheit temp rating, 0.135 inches minimum and 0.143 inches maximum cross-sectional height

Characteristics

Below are the official specifications and performance details for this part, including technical data, material composition, and compliance information.

Outside Diameter
3.512 inches nominal
Temp Rating
-40.0 fahrenheit and 212.0 fahrenheit
Cross-Sectional Height
0.135 inches minimum and 0.143 inches maximum
Center Hole Diameter
3.210 inches minimum and 3.258 inches maximum
Material
rubber synthetic

Classification Data

Detailed NSN information including identification codes, classification data, and key indicators used for cataloging, logistics, and supply management.

Type of Item Identification
1 - Full descriptive item identification
Automatic Data Processing Point
0 - Represents items with no adp components
Demilitarization
A - 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.
Criticality
X - The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Federal Item Identification Guide
A510X0
Precious Metals Indicator
A - Item does not contain precious metal.
Pseudo Item Name Code
0047946
Hazardous Material Indicator
N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
Schedule B Code
4016930000

Freight Information

Comprehensive freight classifications, shipping codes, and handling specifications for domestic and international transport compliance.

Major Organizational Entity
HD
National Motor Freight Classification Item Number
194120
National Motor Freight Classification Sub-Item Number
Z
Uniform Freight Classification Item Number
95100
National Motor Freight Class Rating
W - Rating variable
Water Commodity
596 - Gaskets, (machinery and parts),(less than 35 feet)
Type of Cargo
Z - No special type of cargo code applicable
Special Hand
9 - Other or no special handling required (sh)
Air Dimension
A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
Air Commodity
BZ -
National Motor Freight Description
washers/gaskets/pckg dvcs noi

FAQs

Get insights on installation procedures, operating conditions, care instructions, industry regulations, and common issues. FAQs below provide key information for MIL-STD-81349

What is the FSCG of the NSN 5331-01-059-1659?
The FSCG of the NSN 5331-01-059-1659 is 5331
Does the NSN 5331-01-059-1659 have a Schedule B code assigned?
Yes, the Schedule B code is 4016930000
Does NSN 5331-01-059-1659 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 5331-01-059-1659 contain precious materials?
Item does not contain precious metal.
Does NSN 5331-01-059-1659 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 5331-01-059-1659 was assigned to the Federal Catalog?
It was assigned 48 years ago, on Fri, Apr 7, 1978

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