1680-00-928-1977 SUPPORT,PITCH BELLC Index 1560-00-928-1980 RELEASE ASSEMBLY,WINDOW

National Stock Number:
4730-00-928-1978

Federal Supply Class:
4730

National Item Identification Number:
009281978

Description:
LOCKNUT,TUBE FITTING

Detail:
AN ITEM WITH INTERNAL MACHINE THREADS DESIGNED TO FIT THE EXTERNAL MACHINE THREADS OF A TUBE FITTING. IT HAS FLAT FACES, ONE OF WHICH HAS A COUNTERBORED RECESS TO ACCOMMODATE PACKING, PACKING OR SEALING RING(S), GASKET(S), AND THE LIKE. THE ITEM, WHEN INSTALLED, PROVIDES A METHOD OF LOCKING AND SEALING THE CONNECTION. SEE ALSO LOCKNUT, PIPE; NUT (1), TUBE COUPLING AND NUT (1), PLAIN, HEXAGON.


Manufacturer Information:
MS9100-0896906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
THREAD SERIESUNF
NOMINAL THREAD SIZE0.750 INCHES
THREAD QUANTITY PER INCH16
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL CORROSION RESISTING OVERALL
NUT STYLETUBE FITTING LOCKNUT
WIDTH ACROSS FLATS0.990 INCHES MINIMUM AND
1.002 INCHES MAXIMUM
PACKING RECESS DIAMETER0.920 INCHES NOMINAL
PACKING RECESS DEPTH0.042 INCHES NOMINAL
NOMINAL TUBE OUTSIDE DIAMETER0.500 INCHES
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCEMS9100-08


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