National Stock Number (NSN) Output Data
NSN:
NIIN:
Item Name:
SCREW , SHOULDER
Definition:
AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, NO 0 (0.060 IN.) (1.5 MM) OR LARGER. IT HAS A ROUND UNTHREADED NECK OR SHANK ALL OR PART OF WHICH IS OF GREATER DIAMETER THAN THE THREADED PORTION. THE HEAD IS DESIGNED TO BE DRIVEN WITH EITHER A WRENCH OR AN INSERTED DRIVER OR BOTH IN SIZES BELOW NO. 10 (0.190 IN.) (5 MM) NOMINAL DIAMETER. NO. 10 (0.190 IN.) (5 MM) AND LARGER SIZES MUST BE DESIGNED FOR ANY TYPE OF INSERTED DRIVER, BUT MAY ALSO PROVIDE FOR EXTERNAL WRENCHING OF THE HEAD. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. FOR ITEMS WHICH ARE BOTH SHOULDERED AND HAVE AN EXTERNALLY RELIEVED BODY, USE SCREW, EXTERNALLY RELIEVED BODY. FOR ITEMS WITH A NO. 10 (0.190 IN.) (5 MM) OR LARGER THREAD DIAMETER WITHOUT AN INSERTED DRIVER HEAD, USE BOLT, SHOULDER. EXCLUDES BOLT, INTERNAL WRENCHING AND SCREW, CAP, SOCKET HEAD.
Reference/Part Number
CAGE Information
Code |
Company |
06950 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
97928 |
HUCK INTL INC |
73197 |
HI-SHEAR CORPORATION |
92215 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
17446 |
HUCK INTERNATIONAL INC. DBA ALCOA FA |
80539 |
SPS TECHNOLOGIES LLC DBA AEROSPACE F |
76301 |
BOEING COMPANY THE DBA BOEING |
L4528 |
LISI AEROSPACE CANADA CORP |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
MRC |
Requirements Statement |
Clear Text Reply |
AASL |
HEAD DIAMETER |
0.497 INCHES MINIMUM AND 0.507 INCHES MAXIMUM |
AATX |
SHOULDER LENGTH |
1.645 INCHES MINIMUM FIRST SHOULDER AND 1.665 INCHES MAXIMUM FIRST SHOULDER |
THSD |
THREAD SERIES DESIGNATOR |
UNJF |
AATN |
SHOULDER DIAMETER |
0.2802 INCHES MINIMUM FIRST SHOULDER AND 0.2807 INCHES MAXIMUM FIRST SHOULDER |
AASA |
THREAD LENGTH |
0.291 INCHES MINIMUM AND 0.341 INCHES MAXIMUM |
AAJD |
THREAD CLASS |
3A |
CWYB |
SHOULDER SHAPE |
ROUND FIRST SHOULDER |
AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
CMLP |
THREAD QUANTITY PER INCH |
28 |
AAJF |
THREAD DIRECTION |
RIGHT-HAND |
AASK |
HEAD STYLE |
FLAT COUNTERSUNK |
MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
CRSQ |
COUNTERSINK ANGLE |
99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
MATT |
MATERIAL |
STEEL COMP XM-13 OVERALL |
AASB |
FASTENER LENGTH |
2.051 INCHES MINIMUM AND 2.081 INCHES MAXIMUM |
ABQZ |
INTERNAL DRIVE STYLE |
HIGH-TORQUE |
AAWB |
SHANK UNTHREADED HOLE DIAMETER |
0.076 INCHES MINIMUM FIRST HOLE AND 0.081 INCHES MAXIMUM FIRST HOLE |
STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
SFTT |
SURFACE TREATMENT |
PASSIVATE OVERALL |
CRZS |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER |
1.928 INCHES MINIMUM FIRST HOLE AND 1.968 INCHES MAXIMUM FIRST HOLE |
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