5310-00-451-9020 NUT,PLAIN,ROUND Index 5360-00-451-9023 SPRING,HELICAL,COMPRESSION

National Stock Number:
5310-00-451-9021

Federal Supply Class:
5310

National Item Identification Number:
004519021

Description:
NUT,SELF-LOCKING,SLOTTED,HEXAGON

Detail:
A NUT HAVING A FLAT BEARING SURFACE AND 6 FLAT SIDES WITH SLOTS IN ITS UPPER PORTION. AN INTEGRAL FEATURE IS INCORPORATED FOR LOCKING ON THE THREADS OF A MATING MEMBER. THE SLOTS, WHEN USED IN CONJUNCTION WITH A SOLID OR SPLIT (COTTER) PIN, ACT AS AN EXTRA "FAIL SAFE", FEATURE IN CRITICAL APPLICATIONS. EXCLUDES NUT (1), SELF-LOCKING, CASTELLATED, OCTAGON.


Manufacturer Information:
F12NE4717-202019L2ESNA, LLC
F12NE4717-20272962HARVARD INDUSTRIES INC
MS17826-2096906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
DEFINITIVE GOVERNMENT SPEC/STD REFERENCEMS17826-20
THREAD SERIESUNJF
NOMINAL THREAD SIZE1.250 INCHES
THREAD QUANTITY PER INCH12
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
MATERIALPLASTIC POLYAMIDE LOCKING INSERT
STEEL NUT
SURFACE TREATMENTCADMIUM AND
CHROMATE OVERALL EXCEPT INSERT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT
NUT STYLESLOTTED, HEXAGON
NUT HEIGHT0.610 INCHES MINIMUM AND
0.640 INCHES MAXIMUM
WIDTH ACROSS FLATS1.801 INCHES MINIMUM AND
1.815 INCHES MAXIMUM
BEARING SURFACE TYPEWASHER FACED
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
TEMP RATING250.0 DEG FAHRENHEIT NOMINAL
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE96906


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