5305-01-080-2195 SCREW,SHOULDER Index 5910-01-080-2197 CAPACITOR,FIXED,GLASS DIELECTRIC

National Stock Number:
5305-01-080-2196

Federal Supply Class:
5305

National Item Identification Number:
010802196

Description:
SCREW,CLOSE TOLERANCE

Detail:
A SCREW, MACHINE or SCREW, CAP, SOCKET HEAD whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 IN.) (0.025 mm) or less of a specific diameter for items (1.000 IN.) (25 mm) or less in diameter. Items over (1.000 IN.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 IN.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 IN.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the Screw Thread Standards, FED STD H28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.


Manufacturer Information:
AS104-04-684256AVIBANK MFG., INC.
CA2730-4-0629372HOWMET GLOBAL FASTENING SYSTEMS INC.
CC00035-4-606950HOWMET GLOBAL FASTENING SYSTEMS INC
CA2730-4-629372HOWMET GLOBAL FASTENING SYSTEMS INC.
CC00035-4-681755LOCKHEED MARTIN CORPORATION
CC00035-4-684256AVIBANK MFG., INC.


Techincal Specification:
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONZC00035,FSCM 81755 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.304 INCHES MINIMUM AND 0.364 INCHES MAXIMUM
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNF
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER0.704 INCHES MINIMUM FIRST HOLE AND 0.744 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH0.813 INCHES MINIMUM AND 0.853 INCHES MAXIMUM
GRIP DIAMETER0.2487 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM
GRIP LENGTH0.375 INCHES MINIMUM AND 0.395 INCHES MAXIMUM
HARDNESS RATING38.0 ROCKWELL C MINIMUM GRIP AND 44.0 ROCKWELL C MAXIMUM GRIP
HEAD DIAMETER0.3737 INCHES MINIMUM AND 0.3742 INCHES MAXIMUM
HEAD HEIGHT0.253 INCHES MINIMUM AND 0.273 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
LOCKING FEATUREDETENT BALL GRIP
MATERIAL DOCUMENT AND CLASSIFICATIONFMS-0131,FSCM 81755 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 630 OVERALL
PROPRIETARY CHARACTERISTICSPACS
NOMINAL THREAD DIAMETER0.250 INCHES
SHANK UNTHREADED HOLE DIAMETER0.076 INCHES MINIMUM FIRST HOLE AND 0.086 INCHES MAXIMUM FIRST HOLE
WIDTH ACROSS FLATS0.1875 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE FINISH32.0 MICROINCHES SIDES OF HEAD


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