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 |
17446 |
HUCK INTERNATIONAL INC. DBA ALCOA FA |
56878 |
SPS TECHNOLOGIES LLC DBA AEROSPACE D |
97928 |
HUCK INTL INC |
76301 |
BOEING COMPANY THE DBA BOEING |
L4528 |
LISI AEROSPACE CANADA CORP |
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 |
AATN |
SHOULDER DIAMETER |
0.467 INCHES MINIMUM FIRST SHOULDER AND 0.468 INCHES MAXIMUM FIRST SHOULDER |
AASA |
THREAD LENGTH |
0.574 INCHES MINIMUM AND 0.640 INCHES MAXIMUM |
THSD |
THREAD SERIES DESIGNATOR |
UNJF |
AAJD |
THREAD CLASS |
3A |
CWYB |
SHOULDER SHAPE |
ROUND FIRST SHOULDER |
AAJF |
THREAD DIRECTION |
RIGHT-HAND |
AASK |
HEAD STYLE |
FLAT COUNTERSUNK |
MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
23-105,FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
CRSQ |
COUNTERSINK ANGLE |
99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
MAC PS13145,MCDONNELL DOUGLAS CORP MFR REF SINGLE TREATMENT RESPONSE OVERALL |
MATT |
MATERIAL |
STEEL OVERALL |
AASB |
FASTENER LENGTH |
2.334 INCHES MINIMUM AND 2.380 INCHES MAXIMUM |
AHYM |
NOMINAL THREAD DIAMETER |
0.438 INCHES |
ABQZ |
INTERNAL DRIVE STYLE |
HIGH-TORQUE |
CMLP |
THREAD QUANTITY PER INCH |
20 |
AASL |
HEAD DIAMETER |
0.880 INCHES MINIMUM AND 0.890 INCHES MAXIMUM |
SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL |
AATX |
SHOULDER LENGTH |
1.565 INCHES MINIMUM FIRST SHOULDER AND 1.585 INCHES MAXIMUM FIRST SHOULDER |
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