5310-01-555-4491 WASHER,FLAT,AIRCRAF Index 5310-01-556-7123 WASHER,FLAT

National Stock Number:
5310-01-557-0550

Federal Supply Class:
5310

National Item Identification Number:
015570550

Description:
NUT,PLAIN,HEXAGON

Detail:
A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see LOCKNUT, ELECTRICAL CONDUIT. See also LOCKNUT, TUBE FITTING. For items having a thickness (or height) exceeding two times the width across the flats, use POST, ELECTRICAL-MECHANICAL EQUIPMENT. (When height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)


Manufacturer Information:
1001902461C19MIL-COTS CORPORATION
12759-006310Y3H3FASTENAL COMPANY
907010Y3H3FASTENAL COMPANY
33067321EFH8GENERAL DYNAMICS LAND SYSTEMS - FORCE PROTECTION INC.


Techincal Specification:
MATERIAL DOCUMENT AND CLASSIFICATIONISO 898-2. CLASS 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYINAVY: NUT, FLANGE M8-1.25
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE8.0 MILLIMETERS
NUT HEIGHT7.6 MILLIMETERS MINIMUM AND 8.0 MILLIMETERS MAXIMUM
NUT STYLEHEXAGON
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM F1941M. FE/ZN 3A ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTZINC OVERALL
THREAD SERIESM
WIDTH ACROSS FLATS12.7 MILLIMETERS MINIMUM AND 13.0 MILLIMETERS MAXIMUM


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