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 |
| 29372 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
| 72314 |
BAE SYSTEMS INFORMATION AND ELECTRON |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| AASB |
FASTENER LENGTH |
0.547 INCHES MINIMUM AND 0.577 INCHES MAXIMUM |
| AASB |
FASTENER LENGTH |
0.547 INCHES MINIMUM AND 0.577 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
PAN NO. 2 |
| AATN |
SHOULDER DIAMETER |
0.214 INCHES MINIMUM FIRST SHOULDER AND 0.217 INCHES MAXIMUM FIRST SHOULDER |
| AAJD |
THREAD CLASS |
3A |
| CWYB |
SHOULDER SHAPE |
ROUND FIRST SHOULDER |
| ABQZ |
INTERNAL DRIVE STYLE |
CROSS RECESS TYPE 1 |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AHYM |
NOMINAL THREAD DIAMETER |
0.164 INCHES |
| MATT |
MATERIAL |
STEEL COMP 384 OVERALL OR STEEL COMP 347 OVERALL OR STEEL COMP 321 OVERALL OR STEEL COMP 308 OVERALL OR STEEL COMP 316L OVERALL OR STEEL COMP 314 OVERALL OR STEEL COMP 310 OVERALL OR STEEL COMP 309S OVERALL OR STEEL COMP 309 OVERALL OR STEEL COMP 317 OVERALL OR STEEL COMP 304 OVERALL OR STEEL COMP 301 OVERALL OR STEEL COMP 302B OVERALL OR STEEL COMP 303 OVERALL OR STEEL COMP 305 OVERALL OR STEEL COMP 304L OVERALL OR STEEL COMP 302 OVERALL OR STEEL COMP 310S OVERALL OR STEEL COMP 303SE OVERALL OR STEEL COMP 348 OVERALL OR STEEL COMP 316 OVERALL OR STEEL COMP 385 OVERALL |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
| AASU |
HEAD HEIGHT |
0.110 INCHES MINIMUM AND 0.150 INCHES MAXIMUM |
| AASA |
THREAD LENGTH |
0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
32 |
| SFTT |
SURFACE TREATMENT |
PASSIVATE OVERALL |
| AATX |
SHOULDER LENGTH |
0.141 INCHES MINIMUM FIRST SHOULDER AND 0.171 INCHES MAXIMUM FIRST SHOULDER |
| AASL |
HEAD DIAMETER |
0.420 INCHES MINIMUM AND 0.460 INCHES MAXIMUM |
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