Product Details | DOUBLE HEXAGON EXTENDED WASHER SELF-LOCKING NUT

5310-00-438-5501 A nut having 12 drive points, 24 sides, and an integral washer which extends beyond the points or periphery. An integral feature is incorporated for locking on the threads of a mating member.

Part Alternates: LH75594, LH7559-4, PS120829, PS1208-29, 5310-00-438-5501, 00-438-5501, 5310004385501, 004385501

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 05 DEC 1969 00-438-5501

Drawings & Photos | NSN 5310-00-438-5501


Demand History | NSN 5310-00-438-5501

Part Number Request Date QTY Origin
5310-00-438-5501 2016-04-98 60 Indonesia
LH75594 2007-09-269 50 United States

Cross Reference | NSN 5310-00-438-5501

Part Number Cage Code Manufacturer
LH7559-4 72962 HARVARD INDUSTRIES INC
PS1208-29 70255 EMERSON ELECTRIC CO ALCO CONTROLS DIV

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Technical Data | NSN 5310-00-438-5501

Characteristic Specifications
THREAD SERIES UNJF
NOMINAL THREAD SIZE 0.250 INCHES
THREAD QUANTITY PER INCH 28
THREAD CLASS 3B
THREAD DIRECTION RIGHT-HAND
MATERIAL STEEL OVERALL
SURFACE TREATMENT CADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING NOT RATED
NUT STYLE A293 DOUBLE HEXAGON
WASHER OUTSIDE DIAMETER 0.420 INCHES MAXIMUM
OVERALL HEIGHT 0.219 INCHES MAXIMUM
WASHER THICKNESS 0.040 INCHES NOMINAL
WIDTH ACROSS FLATS 0.281 INCHES NOMINAL
LOCKING FEATURE PREVAILING TORQUE ALL METAL DESIGN
COUNTERSINK ANGLE ANY ACCEPTABLE NUT
LUBRICATION DRY FILM LUBRICANT
TEMP RATING 450.0 DEG FAHRENHEIT NOMINAL
MANUFACTURERS CODE 70255
DESIGN CONTROL REFERENCE PS1208-29

Restrictions/Controls & Freight Information | NSN 5310-00-438-5501

Category Code Description
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.
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
No Freight Information