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National Stock Number:
5310-00-488-9137
Federal Supply Class:
5310
National Item Identification Number:
004889137
Description:
NUT,SELF-LOCKING,EXTENDED WASHER
Detail:
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.
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Manufacturer Information:
| 11745808 | 19200 | US ARMY ARDEC RDECOM | | 12NH-4 | 019L2 | ESNA, LLC | | EB048 | 000Y2 | MILLS STERLING AEROSPACE INC | | EB-428 | 15653 | HOWMET GLOBAL FASTENING SYSTEMS INC | | 9026171 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | 7792554 | 19205 | SPRINGFIELD ARMORY | | EB048 | 12770 | ARNOLD ENGINEERING CO PACIFIC DIV DIV OF SPS TECHNOLOGIES | | EB048 | 56878 | SPS TECHNOLOGIES, LLC | | EB048 | 72962 | HARVARD INDUSTRIES INC | | EB048 | 97499 | BELL TEXTRON INC |
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Techincal Specification:
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT | | OVERALL HEIGHT | 0.334 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | AISI4130 ASSN STD SINGLE MATERIAL RESPONSE OR AISI4340 ASSN STD SINGLE MATERIAL RESPONSE OR AISI3140 ASSN STD SINGLE MATERIAL RESPONSE OR SAE8740 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 4130 OR STEEL COMP 4340 OR STEEL COMP 3140 OR STEEL COMP 8740 OVERALL | | NOMINAL THREAD SIZE | 0.250 INCHES | | NUT STYLE | DOUBLE HEXAGON | | WASHER OUTSIDE DIAMETER | 0.521 INCHES MINIMUM AND 0.531 INCHES MAXIMUM | | WASHER THICKNESS | 0.090 INCHES NOMINAL | | WIDTH ACROSS FLATS | 0.362 INCHES MINIMUM AND 0.377 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL EXCEPT INSERT | | TEMP RATING | 250.0 FAHRENHEIT NOMINAL | | THREAD CLASS | 3B | | THREAD DIRECTION | RIGHT-HAND | | THREAD QUANTITY PER INCH | 28 | | THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
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