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 |
| L4528 |
LISI AEROSPACE CANADA CORP |
| 73197 |
HI-SHEAR CORPORATION |
| 80539 |
SPS TECHNOLOGIES LLC DBA AEROSPACE F |
| 17446 |
HUCK INTERNATIONAL INC. DBA ALCOA FA |
| 76301 |
BOEING COMPANY THE DBA BOEING |
| 92215 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
| 97928 |
HUCK INTL INC |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| AASA |
THREAD LENGTH |
0.630 INCHES MINIMUM AND 0.697 INCHES MAXIMUM |
| AATN |
SHOULDER DIAMETER |
0.4521 INCHES MINIMUM FIRST SHOULDER AND 0.4526 INCHES MAXIMUM FIRST SHOULDER |
| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| AATX |
SHOULDER LENGTH |
0.675 INCHES MINIMUM FIRST SHOULDER AND 0.698 INCHES MAXIMUM FIRST SHOULDER |
| AASB |
FASTENER LENGTH |
1.453 INCHES MINIMUM AND 1.500 INCHES MAXIMUM |
| AASL |
HEAD DIAMETER |
0.881 INCHES MINIMUM AND 0.888 INCHES MAXIMUM |
| FEAT |
SPECIAL FEATURES |
FURNISHED WITH ONE RUBBER O RING |
| AAJD |
THREAD CLASS |
3A |
| CWYB |
SHOULDER SHAPE |
ROUND FIRST SHOULDER |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| CRSQ |
COUNTERSINK ANGLE |
99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| AASU |
HEAD HEIGHT |
0.124 INCHES MINIMUM AND 0.127 INCHES MAXIMUM |
| MATT |
MATERIAL |
STEEL COMP XM-13 OVERALL |
| AHYM |
NOMINAL THREAD DIAMETER |
0.438 INCHES |
| ABQZ |
INTERNAL DRIVE STYLE |
HIGH-TORQUE |
| AASK |
HEAD STYLE |
FLAT COUNTERSUNK UNDERCUT |
| CMLP |
THREAD QUANTITY PER INCH |
20 |
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