5310-01-494-0436 NUT,SELF-LOCKING,EXTENDED WASHER Index 6625-01-494-0438 OSCILLOSCOPE

National Stock Number:
5305-01-494-0437

Federal Supply Class:
5305

National Item Identification Number:
014940437

Description:
SCREW,MACHINE

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below No. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; and SCREW, ASSEMBLED WASHER. See also, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; and SCREW, CAP SOCKET HEAD.


Manufacturer Information:
1241457519207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
12414575-042076M6BAE SYSTEMS LAND & ARMAMENTS L.P.
12414575-0420FW39BAE SYSTEMS TACTICAL VEHICLE SYSTEMS LP
12414575-04219207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
12414575-04275Q65OSHKOSH DEFENSE LLC
DIN7985-M4X20-4.8-H-A2DD8286DIN DEUTSCHES INSTITUT FUER NORMUNGEV


Techincal Specification:
EXTERNAL THREAD TOLERANCE CLASS6G
FASTENER LENGTH20.0 MILLIMETERS NOMINAL
HEAD DIAMETER8.0 MILLIMETERS NOMINAL
HEAD HEIGHT3.1 MILLIMETERS NOMINAL
HEAD STYLEPAN
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
NOMINAL THREAD DIAMETER4.0 MILLIMETERS
SCREW MATERIALSTEEL PROPERTY CLASS 4.8
SCREW SURFACE TREATMENTZINC AND CHROMATE
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH20.0 MILLIMETERS NOMINAL
THREAD PITCH IN MILLIMETERS0.7
THREAD SERIES DESIGNATORISO M


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