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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
NAS1978C34H 80205 A 3 2 E ZZ
NAS1978C34 D9182 A C 1 6 ZZ AC

CAGE Information

Code Company
80205 NATIONAL AEROSPACE STANDARDS COMMITT
D9182 BOSCH REXROTH GMBH LOHMANN STOLTERFO

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
AAUR GRIP DIAMETER 0.4985 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM
AASL HEAD DIAMETER 0.959 INCHES NOMINAL
CQBC MINIMUM TENSILE STRENGTH 180000 POUNDS PER SQUARE INCH
THSD THREAD SERIES DESIGNATOR UNJF
MDCL MATERIAL DOCUMENT AND CLASSIFICATION AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
ZZZK SPECIFICATION/STANDARD DATA 80205-NAS1978 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
AAJD THREAD CLASS 3A
AHYM NOMINAL THREAD DIAMETER 0.500 INCHES
ANEE GRIP LENGTH 2.115 INCHES MINIMUM AND 2.135 INCHES MAXIMUM
AAJF THREAD DIRECTION RIGHT-HAND
AASK HEAD STYLE FLAT COUNTERSUNK
MATT MATERIAL IRON ALLOY 660 OVERALL
AASB FASTENER LENGTH 2.845 INCHES MINIMUM AND 2.875 INCHES MAXIMUM
CRSQ COUNTERSINK ANGLE 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
AASA THREAD LENGTH 0.735 INCHES NOMINAL
ABQZ INTERNAL DRIVE STYLE HIGH-TORQUE
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
CMLP THREAD QUANTITY PER INCH 20
SFTT SURFACE TREATMENT PASSIVATE OVERALL

Similar Parts

NAS1978C34H , NAS1978C34H , 5305-01-478-9446 , 5305014789446 , 014789446 , NAS1978C34H , NAS1978C34 ,