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 |
| 17446 |
HUCK INTERNATIONAL INC. DBA ALCOA FA |
| 97928 |
HUCK INTL INC |
| 76301 |
BOEING COMPANY THE DBA BOEING |
| 92215 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
| 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 |
| AASU |
HEAD HEIGHT |
0.058 INCHES MINIMUM AND 0.060 INCHES MAXIMUM |
| CRSQ |
COUNTERSINK ANGLE |
100.0 DEGREES NOMINAL |
| AASA |
THREAD LENGTH |
0.442 INCHES MINIMUM AND 0.509 INCHES MAXIMUM |
| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| AATN |
SHOULDER DIAMETER |
0.2802 INCHES MINIMUM FIRST SHOULDER AND 0.2807 INCHES MAXIMUM FIRST SHOULDER |
| FEAT |
SPECIAL FEATURES |
FURNISHED WITH ONE RUBBER O RING |
| 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 |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| AATX |
SHOULDER LENGTH |
1.118 INCHES MINIMUM FIRST SHOULDER AND 1.140 INCHES MAXIMUM FIRST SHOULDER |
| AASB |
FASTENER LENGTH |
1.640 INCHES MINIMUM AND 1.687 INCHES MAXIMUM |
| MATT |
MATERIAL |
STEEL COMP XM-13 OVERALL |
| ABQZ |
INTERNAL DRIVE STYLE |
HIGH-TORQUE |
| AASK |
HEAD STYLE |
FLAT COUNTERSUNK UNDERCUT |
| SFTT |
SURFACE TREATMENT |
PASSIVATE OVERALL |
| AASL |
HEAD DIAMETER |
0.502 INCHES MINIMUM AND 0.507 INCHES MAXIMUM |
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