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National Stock Number (NSN) Output Data

NSN:
NIIN:
Item Name:
BOLT , CLOSE TOLERANCE

Definition:

AN EXTERNALLY THREADED FASTENER WHOSE UNTHREADED PORTION IS OF A SPECIFIED GRIP LENGTH, PLATED OR UNPLATED, AND IS MACHINED TO A TOLERANCE OF ONE THOUSANDTH (0.001) OF AN INCH (0.025 MM) OR LESS OF A SPECIFIC DIAMETER FOR ITEMS ONE INCH (25 MM) OR LESS IN DIAMETER. ITEMS OVER ONE INCH (25 MM) IN DIAMETER SHALL HAVE A TOLERANCE OF FIFTEEN TEN-THOUSANDTHS (0.0015) OF AN INCH (0.038 MM) OR LESS. THE NOMINAL MAJOR DIAMETER OF THE THREADS SHALL BE AT LEAST ONE THOUSANDTH (0.001) OF AN INCH (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 NOT DESIGNED TO BE HELD OR DRIVEN WITH AN INSERTED DRIVER, NOR IS IT DESIGNED FOR ROTATION BY THE THUMB AND FINGERS. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. FOR ITEMS HAVING CLOSE TOLERANCE, AND FABRICATED FROM MATERIAL HAVING 160,000 POUNDS PER SQUARE INCH (1100 MEGAPASCALS) MINIMUM TENSILE STRENGTH, SEE BOLT, SHEAR. FOR ITEMS FABRICATED FROM MATERIAL HAVING LESS THAN 160,000 POUNDS PER SQUARE INCH (1100 MEGAPASCALS) MINIMUM TENSILE STRENGTH AND NOT HAVING A CLOSE TOLERANCE, SEE BOLT, MACHINE.

Reference/Part Number

Part Number CAGE Status RNCC RNVC DAC RNAAC MSDS SADC
NAS1225C4 80205 A 3 2 4 SE
LK1225C4 26304 F 5 9 4 KZ

CAGE Information

Code Company
26304 TORKON FASTENER CORP
80205 NATIONAL AEROSPACE STANDARDS COMMITT

Federal Supply Class

Title

BOLTS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
CSYM SURFACE FINISH 32.0 MICROINCHES THREADS
CSYM SURFACE FINISH 32.0 MICROINCHES THREADS
CMLP THREAD QUANTITY PER INCH 24
MDCL MATERIAL DOCUMENT AND CLASSIFICATION AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
AASA THREAD LENGTH 0.444 INCHES MINIMUM AND 0.494 INCHES MAXIMUM
AASU HEAD HEIGHT 0.156 INCHES MINIMUM AND 0.171 INCHES MAXIMUM
THSD THREAD SERIES DESIGNATOR UNJF
MATT MATERIAL PLASTIC POLYAMIDE LOCKING FEATURE
AAJD THREAD CLASS 3A
CSYM SURFACE FINISH 63.0 MICROINCHES GRIP
AAJF THREAD DIRECTION RIGHT-HAND
CSYM SURFACE FINISH 63.0 MICROINCHES BEARING SURFACE OF HEAD
AATB WIDTH BETWEEN FLATS 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM
AAUM LOCKING FEATURE PELLET THREADS OR PATCH THREADS OR STRIP THREADS
CQBC MINIMUM TENSILE STRENGTH 140000 POUNDS PER SQUARE INCH
AAUR GRIP DIAMETER 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM
AASK HEAD STYLE DISHED HEXAGON
AASB FASTENER LENGTH 0.704 INCHES MINIMUM AND 0.734 INCHES MAXIMUM
FEAT SPECIAL FEATURES WITH STRIP OR PATCH OR BUTTON TYPE ELEMENT ON THREADS FOR LOCKING FEATURE
ANEE GRIP LENGTH 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
ZZZK SPECIFICATION/STANDARD DATA 80205-NAS1225 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
AHYM NOMINAL THREAD DIAMETER 0.313 INCHES

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