3020-00-537-3919 GEAR,BEVEL Index 5331-00-537-3923 O-RING

National Stock Number:
5310-00-537-3920

Federal Supply Class:
5310

National Item Identification Number:
005373920

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:
10121469A486GNIMIKKEISTOKESKUS NCB FINLAND
5310PL20543439009HINSPEKTORAT WSPARCIA SIL ZBROJNYCH
MS21225-580205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
MS21225-596906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MS21225-5A0126LEONARDO SPA HELICOPTERS DIVISION -PRODUCTION SITE
Z7764-5019L2ESNA, LLC
Z7764-572962HARVARD INDUSTRIES INC


Techincal Specification:
BEARING SURFACE TYPEWASHER FACED
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5725 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALIRON ALLOY 660 OVERALL
NOMINAL THREAD SIZE0.312 INCHES
NUT HEIGHT0.313 INCHES MINIMUM AND 0.343 INCHES MAXIMUM
NUT STYLESLOTTED, HEXAGON
WIDTH ACROSS FLATS0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2411 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTSILVER OVERALL
TEMP RATING800.0 FAHRENHEIT NOMINAL
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH24
THREAD SERIESUNJF


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