Part Number
Part Number:
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.
CAGE Information
| Code |
Company |
| 18876 |
U S ARMY AVIATION AND MISSILE COMMAN |
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| SFTT |
SURFACE TREATMENT |
ZINC OVERALL |
| AASK |
HEAD STYLE |
PAN NO. 2 |
| ABQZ |
INTERNAL DRIVE STYLE |
SLOT |
| AASB |
FASTENER LENGTH |
0.593 INCHES NOMINAL |
| CWYB |
SHOULDER SHAPE |
ROUND FIRST SHOULDER |
| AATX |
SHOULDER LENGTH |
0.312 INCHES NOMINAL FIRST SHOULDER |
| AASL |
HEAD DIAMETER |
0.500 INCHES NOMINAL |
| AASU |
HEAD HEIGHT |
0.094 INCHES NOMINAL |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-Z-325,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| AHYM |
NOMINAL THREAD DIAMETER |
0.164 INCHES |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
| AAJD |
THREAD CLASS |
2A |
| AATN |
SHOULDER DIAMETER |
0.250 INCHES NOMINAL FIRST SHOULDER |
| MATT |
MATERIAL |
STEEL COMP 1117 OVERALL |
| CMLP |
THREAD QUANTITY PER INCH |
32 |
| AASA |
THREAD LENGTH |
0.250 INCHES NOMINAL |
Similar Parts