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Part Number

Part Number:
NSN:
NIIN:
Item Name:
SCREW , CLOSE TOLERANCE

Definition:

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.

CAGE Information

Code Company
50392 SPS TECHNOLOGIES INC

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
AHYM NOMINAL THREAD DIAMETER 0.190 INCHES
AHYM NOMINAL THREAD DIAMETER 0.190 INCHES
AASL HEAD DIAMETER 0.325 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
AASB FASTENER LENGTH 0.595 INCHES MINIMUM AND 0.642 INCHES MAXIMUM
THSD THREAD SERIES DESIGNATOR UNJF
AAJD THREAD CLASS 3A
AAJF THREAD DIRECTION RIGHT-HAND
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION SPS-P-671,50392 MFR REF SINGLE TREATMENT RESPONSE OVERALL
AASK HEAD STYLE FLAT COUNTERSUNK
CQBC MINIMUM TENSILE STRENGTH 220000 POUNDS PER SQUARE INCH
CRSQ COUNTERSINK ANGLE 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
AAUR GRIP DIAMETER 0.1885 INCHES MINIMUM AND 0.1894 INCHES MAXIMUM
MDCL MATERIAL DOCUMENT AND CLASSIFICATION AMS6485 FED SPEC 1ST MATERIAL RESPONSE OVERALL OR AMS6487 FED SPEC 2ND MATERIAL RESPONSE OVERALL
CQFM HARDNESS RATING 50.0 ROCKWELL C NOMINAL OVERALL
ABQZ INTERNAL DRIVE STYLE HIGH-TORQUE
MATT MATERIAL STEEL COMP H11 OVERALL
CMLP THREAD QUANTITY PER INCH 32
ANEE GRIP LENGTH 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
SFTT SURFACE TREATMENT CADMIUM OVERALL
AASA THREAD LENGTH 0.210 INCHES MINIMUM AND 0.277 INCHES MAXIMUM

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