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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
HT4027-9D45 L4528 A 5 2 A ZZ
ST3M557-9D45 76301 A 3 2 A ZZ
ST3M557-9D45 58998 A 5 2 A ZZ
HT4027-9D45 56878 A 5 2 A ZZ
ST3M557 76301 A D 9 A ZZ
HT4027-9D45 73197 A 5 2 A ZZ
HT4027-9D45 80539 A 5 2 A ZZ
ST3M557-9D45 1VSL7 A 5 2 5 ZZ

CAGE Information

Code Company
1VSL7 HOUSTON PRECISION FASTENER L.L.C.
L4528 LISI AEROSPACE CANADA CORP
76301 BOEING COMPANY THE DBA BOEING
58998 EMHART TEKNOLOGIES LLC DBA FASTENER
56878 SPS TECHNOLOGIES LLC DBA AEROSPACE D
73197 HI-SHEAR CORPORATION
80539 SPS TECHNOLOGIES LLC DBA AEROSPACE F

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
THSD THREAD SERIES DESIGNATOR UNJF
AASA THREAD LENGTH 0.906 INCHES NOMINAL
AAUR GRIP DIAMETER 0.5610 INCHES MINIMUM AND 0.5615 INCHES MAXIMUM
CMLP THREAD QUANTITY PER INCH 18
AAJD THREAD CLASS 3A
AAUB HOLE DIAMETER 0.141 INCHES MINIMUM AND 0.146 INCHES MAXIMUM
AAJF THREAD DIRECTION RIGHT-HAND
AASK HEAD STYLE FLAT COUNTERSUNK
CRSQ COUNTERSINK ANGLE 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
AASL HEAD DIAMETER 0.838 INCHES NOMINAL
ASXK HOLE QUANTITY 1
ANEE GRIP LENGTH 2.8025 INCHES MINIMUM AND 2.8225 INCHES MAXIMUM
AHYM NOMINAL THREAD DIAMETER 0.5625 INCHES
AGAV END ITEM IDENTIFICATION LANDING GEAR
ABQZ INTERNAL DRIVE STYLE HIGH-TORQUE
BQDM HOLE TYPE DRILLED
MDCL MATERIAL DOCUMENT AND CLASSIFICATION AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
CRHC HOLE CONFIGURATION STYLE ROUND
MATT MATERIAL NICKEL ALLOY 718 OVERALL
SFTT SURFACE TREATMENT PASSIVATE OVERALL
AASB FASTENER LENGTH 3.7035 INCHES MINIMUM AND 3.7335 INCHES MAXIMUM

Similar Parts

ST3M557-9D45 , ST3M5579D45 , 5305-01-507-4373 , 5305015074373 , 015074373 , HT4027-9D45 , ST3M557-9D45 , ST3M557-9D45 , HT4027-9D45 , ST3M557 , HT4027-9D45 , HT4027-9D45 , ST3M557-9D45 ,