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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
D9182 BOSCH REXROTH GMBH LOHMANN STOLTERFO

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION 3-48 FSCM 76301 MFR REF SINGLE TREATMENT RESPONSE OVERALL
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION 3-48 FSCM 76301 MFR REF SINGLE TREATMENT RESPONSE OVERALL
AASA THREAD LENGTH 0.372 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
CRSQ COUNTERSINK ANGLE 100.0 DEGREES NOMINAL
MDCL MATERIAL DOCUMENT AND CLASSIFICATION 3-48 FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL
ANEE GRIP LENGTH 1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM
AAJD THREAD CLASS 3A
AHYM NOMINAL THREAD DIAMETER 0.250 INCHES
CMLP THREAD QUANTITY PER INCH 28
AAJF THREAD DIRECTION RIGHT-HAND
AASB FASTENER LENGTH 1.515 INCHES MINIMUM AND 1.562 INCHES MAXIMUM
MATT MATERIAL STEEL OVERALL
THSD THREAD SERIES DESIGNATOR UNF
AAUR GRIP DIAMETER 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
AASL HEAD DIAMETER 0.5018 INCHES MINIMUM AND 0.5066 INCHES MAXIMUM
ABQZ INTERNAL DRIVE STYLE HIGH-TORQUE
AASU HEAD HEIGHT 0.106 INCHES MINIMUM AND 0.108 INCHES MAXIMUM
AASK HEAD STYLE FLAT COUNTERSUNK UNDERCUT
FEAT SPECIAL FEATURES FURNISHED W/ PREFORMED PACKING
SFTT SURFACE TREATMENT CADMIUM OVERALL

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