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National Stock Number (NSN) Output Data

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.

Reference/Part Number

Part Number CAGE Status RNCC RNVC DAC RNAAC MSDS SADC
NAS1157E16D 80205 A 3 2 E KZ

CAGE Information

Code Company
80205 NATIONAL AEROSPACE STANDARDS COMMITT

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
CRZS DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER 1.329 INCHES NOMINAL FIRST HOLE
AASB FASTENER LENGTH 1.438 INCHES MINIMUM AND 1.468 INCHES MAXIMUM
AASL HEAD DIAMETER 0.832 INCHES MINIMUM AND 0.890 INCHES MAXIMUM
THSD THREAD SERIES DESIGNATOR UNJF
CQBC MINIMUM TENSILE STRENGTH 160000 POUNDS PER SQUARE INCH
AAJD THREAD CLASS 3A
AASA THREAD LENGTH 0.453 INCHES NOMINAL
AAJF THREAD DIRECTION RIGHT-HAND
AAUR GRIP DIAMETER 0.4360 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM
AASK HEAD STYLE FLAT COUNTERSUNK
MATT MATERIAL IRON ALLOY 660 OVERALL
CRSQ COUNTERSINK ANGLE 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
AHYM NOMINAL THREAD DIAMETER 0.438 INCHES
AAWB SHANK UNTHREADED HOLE DIAMETER 0.106 INCHES MINIMUM FIRST HOLE AND 0.116 INCHES MAXIMUM FIRST HOLE
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
CMLP THREAD QUANTITY PER INCH 20
ABQZ INTERNAL DRIVE STYLE OFFSET CRUCIFORM (TORQUE SET)
ZZZK SPECIFICATION/STANDARD DATA 80205-NAS1157 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
ANEE GRIP LENGTH 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM
SFTT SURFACE TREATMENT PASSIVATE OVERALL
MDCL MATERIAL DOCUMENT AND CLASSIFICATION AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

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