Product Details | O-RING

5331-01-237-2688 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: MS28775216, MS28775-216, LLHX45302, LL-HX4-5302, MILP25732, MIL-P-25732, 5331-01-237-2688, 01-237-2688, 5331012372688, 012372688

Hardware and Abrasives | O-Ring

Supply Group (FSG) NSN Assign. NIIN
53 29 JUL 1986 01-237-2688

Drawings & Photos | NSN 5331-01-237-2688


Demand History | NSN 5331-01-237-2688

Part Number Request Date QTY Origin
MS28775216 2025-10-286 50 India
MS28775216 2025-04-97 260 United States
MS28775216 2024-12-360 10 United States
MILP25732 2023-09-261 15 US
MILP25732 2023-09-261 15 US
MS28775216 2023-07-209 1 us
MS28775216 2021-03-67 500 US
MS28775216 2020-06-157 4 us
5331-01-237-2688 2019-11-323 10 United States
MS28775216 2018-09-269 2 us
MS28775-216 2017-06-171 6 United States
MS28775216 2013-06-164 1 US
MS28775-216 2012-11-310 68
MS28775216 2012-03-86 1 Singapore
MS28775216 2012-03-65 30 US
MS28775-216 2011-04-95 16 United States
MS28775216 2007-05-149 2 Singapore

Cross Reference | NSN 5331-01-237-2688

Part Number Cage Code Manufacturer
LL-HX4-5302 14153 DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER
MIL-P-25732 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
MS28775-216 96906 MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS

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Technical Data | NSN 5331-01-237-2688

Characteristic Specifications
MATERIAL RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
CENTER HOLE DIAMETER 1.097 INCHES MINIMUM AND 1.121 INCHES MAXIMUM
CROSS-SECTIONAL HEIGHT 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MIL-P-25732

Restrictions/Controls & Freight Information | NSN 5331-01-237-2688

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:AItem does not contain precious metal
Criticality Code:YThe item does not have a nuclear hardened feature but does have other critical feature(s) such as tolerance, fit restriction or application.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
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 713 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 5331-01-237-2688

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesYTERMINAL ITEM #(NON-STOCKED ITEMS) Future procurement is not authorized. No wholesale stock is available for issue. 1. Requisitions will not be processed to the wholesale manager. 2. Internal Service/agency requisitioning may be continued in accordance with the Service/agency requisitioning policies.
Controlled Item CodeUUNCLASSIFIED
Shelf Life CodeY180 months
Purchasing QTY
UOM
1
EA : Each