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 |
| 56878 |
SPS TECHNOLOGIES LLC DBA AEROSPACE D |
| 76301 |
BOEING COMPANY THE DBA BOEING |
| L4528 |
LISI AEROSPACE CANADA CORP |
| 92215 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
| 0PTK6 |
SPS TECHNOLOGIES INC |
| 73197 |
HI-SHEAR CORPORATION |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| AHYM |
NOMINAL THREAD DIAMETER |
0.190 INCHES |
| AHYM |
NOMINAL THREAD DIAMETER |
0.190 INCHES |
| CRSQ |
COUNTERSINK ANGLE |
100.0 DEGREES NOMINAL |
| AAJD |
THREAD CLASS |
3A |
| CWYB |
SHOULDER SHAPE |
ROUND FIRST SHOULDER |
| AASK |
HEAD STYLE |
FLAT COUNTERSUNK |
| AASL |
HEAD DIAMETER |
0.376 INCHES MINIMUM AND 0.381 INCHES MAXIMUM |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| ABQZ |
INTERNAL DRIVE STYLE |
HIGH-TORQUE |
| AASA |
THREAD LENGTH |
0.380 INCHES MINIMUM AND 0.447 INCHES MAXIMUM |
| AATX |
SHOULDER LENGTH |
0.353 INCHES MINIMUM FIRST SHOULDER AND 0.375 INCHES MAXIMUM FIRST SHOULDER |
| AASB |
FASTENER LENGTH |
0.828 INCHES MINIMUM AND 0.875 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
32 |
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