Product Details | EXTENDED WASHER SELF-LOCKING NUT

5310-00-721-3101 A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery. An integral feature is incorporated for locking on the threads of a mating member.

Part Alternates: S616521010, S6165-21010, 5310-00-721-3101, 00-721-3101, 5310007213101, 007213101

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-721-3101

Drawings & Photos | NSN 5310-00-721-3101


Demand History | NSN 5310-00-721-3101

Part Number Request Date QTY Origin
5310-00-721-3101 2023-04-04 5 DIBBS
5310-00-721-3101 2021-06-07 5 DIBBS
5310-00-721-3101 2016-07-18 10 DIBBS
5310-00-721-3101 2016-03-01 15 DIBBS
5310-00-721-3101 2015-09-09 1 DIBBS
5310-00-721-3101 2015-08-27 1 DIBBS
5310-00-721-3101 2015-08-02 2 DIBBS
5310-00-721-3101 2015-05-05 5 DIBBS
5310-00-721-3101 2014-07-24 1 DIBBS
5310-00-721-3101 2013-05-19 1 DIBBS
5310-00-721-3101 2013-04-01 4 DIBBS

Cross Reference | NSN 5310-00-721-3101

Part Number Cage Code Manufacturer
S6165-21010 78286 SIKORSKY AIRCRAFT CORPORATION

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Technical Data | NSN 5310-00-721-3101

Characteristic Specifications
THREAD SERIES UNF
NOMINAL THREAD SIZE 0.250 INCHES
THREAD QUANTITY PER INCH 28
THREAD CLASS 3B
THREAD DIRECTION RIGHT-HAND
MATERIAL PLASTIC LOCKING INSERT STEEL COMP 410 NUT
MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-763 ASSN STD SINGLE MATERIAL RESPONSE NUT
SURFACE TREATMENT PASSIVATE OVERALL EXCEPT INSERT
HARDNESS RATING NOT RATED
NUT STYLE A294 HEXAGON
WASHER OUTSIDE DIAMETER 0.780 INCHES NOMINAL
OVERALL HEIGHT 0.312 INCHES NOMINAL
WASHER THICKNESS 0.124 INCHES NOMINAL
WIDTH ACROSS FLATS 0.375 INCHES NOMINAL
LOCKING FEATURE PREVAILING TORQUE WITH NONMETALLIC INSERT
TEMP RATING NOT RATED
MANUFACTURERS CODE 78286
DESIGN CONTROL REFERENCE S6165-21010

Restrictions/Controls & Freight Information | NSN 5310-00-721-3101

Category Code Description
Shelf-Life Code:0Nondeteriorative
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 093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3)
Less than car load rating
Less than truck load rating W Rating Variable
Water commodity Code 573 unknown
Originating Activity Code XX
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 5310-00-721-3101

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 CodesJNOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative