Product Details | O-RING

5331-00-500-1781 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.

Part Alternates: A52864, 52840PC7, 5331-00-500-1781, 00-500-1781, 5331005001781, 005001781

Hardware and Abrasives | O-Ring

Supply Group (FSG) NSN Assign. NIIN
53 02 JUL 1974 00-500-1781

Demand History | NSN 5331-00-500-1781

Part Number Request Date QTY Origin
52864 2023-07-185 35 DIBBS
52864 2023-06-171 35 DIBBS
52864 2022-12-353 19 DIBBS
52864 2022-12-342 19 DIBBS
52864 2022-03-90 30 DIBBS
52864 2022-03-76 25 DIBBS
A52864 2022-02-48 19 DIBBS
A52864 2022-01-24 8 DIBBS
A52864 2022-01-06 8 DIBBS
A52864 2022-01-03 20 DIBBS
A52864 2021-09-263 22 DIBBS
A52864 2021-08-216 11 DIBBS
A52864 2021-07-203 7 DIBBS
A52864 2021-07-201 9 DIBBS
A52864 2021-06-161 4 DIBBS
A52864 2020-10-289 39 DIBBS
A52864 2020-05-140 49 DIBBS
A52864 2020-05-125 49 DIBBS
A52864 2020-04-121 25 DIBBS
A52864 2019-11-321 23 DIBBS
A52864 2019-10-301 47 DIBBS
A52864 2019-06-174 47 DIBBS
5331-00-500-1781 2018-02-36 43 DIBBS
5331-00-500-1781 2017-09-256 52 DIBBS
5331-00-500-1781 2017-09-248 52 DIBBS
A52864 2014-10-297 203
5331-00-500-1781 2014-10-295 203 NECO
A52864 2013-11-320 51
5331-00-500-1781 2013-11-319 51 NECO
A52864 2012-03-81 60
5331-00-500-1781 2012-03-80 60 NECO
A52864 2011-12-336 53
5331-00-500-1781 2011-12-335 53 NECO
A52864 2011-06-166 70
5331-00-500-1781 2011-06-165 70 NECO
A52864 2011-03-65 87
5331-00-500-1781 2011-03-64 87 NECO

Cross Reference | NSN 5331-00-500-1781

Part Number Cage Code Manufacturer
52840PC7 77842 EATON CORPORATION DBA CENTURIAN MECHANICAL SEALS
A52864 0EYA6 WARTSILA DEFENSE, INC.
A52864 0SYN4 WARTSILA LIPS INC
A52864 77842 EATON CORPORATION DBA CENTURIAN MECHANICAL SEALS

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Technical Data | NSN 5331-00-500-1781

Characteristic Specifications
MATERIAL RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
CENTER HOLE DIAMETER 29.940 INCHES MINIMUM AND 30.060 INCHES MAXIMUM
CROSS-SECTIONAL HEIGHT 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM
MANUFACTURERS CODE 0SYN4
DESIGN CONTROL REFERENCE A52864

Restrictions/Controls & Freight Information | NSN 5331-00-500-1781

Category Code Description
Shelf-Life Code:Y180 months
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
NMF Description 194120 WASHERS/GASKETS/PCKG DVCS NOI
Less than car load rating
Less than truck load rating W Rating Variable
Water commodity Code 596 unknown
Originating Activity Code KZ Defense Supply Center Philadelphia
Philadelphia, PA 19101
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 5331-00-500-1781

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Special Material Content9 Non-Hazardous or Non-Sensitive Item, does not require hazardous or special handling, packaging or precautions
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesDDoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life CodeY180 months