National Stock Number (NSN) Output Data
NSN:
NIIN:
Item Name:
SCREW , CLOSE TOLERANCE
Definition:
A SCREW, MACHINE OR SCREW, CAP, SOCKET HEAD WHOSE UNTHREADED PORTION IS OF SPECIFIED GRIP LENGTH, PLATED OR UNPLATED, AND IS MACHINED TO A TOLERANCE OF ONE THOUSANDTH (0.001 IN.) (0.025 MM) OR LESS OF A SPECIFIC DIAMETER FOR ITEMS (1.000 IN.) (25 MM) OR LESS IN DIAMETER. ITEMS OVER (1.000 IN.) (25 MM) IN DIAMETER SHALL HAVE A TOLERANCE OF FIFTEEN TEN THOUSANDTHS (0.0015 IN.) (0.038 MM) OR LESS. THE NOMINAL MAJOR DIAMETER OF THE THREADS SHALL BE AT LEAST ONE THOUSANDTH (0.001 IN.) (0.025 MM) BELOW THE MINIMUM SHANK DIAMETER, BUT NOT BELOW THE MINIMUM MAJOR DIAMETER FOR APPLICABLE CLASS OF FIT, AS SHOWN IN THE SCREW THREAD STANDARDS, FED STD H28 AND/OR OTHER NATIONALLY RECOGNIZED STANDARDS. THE HEAD IS DESIGNED TO BE HELD OR DRIVEN WITH AN INSERTED DRIVER. IT IS NOT DESIGNED FOR ROTATION BY THE THUMB AND FINGERS. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS.
Reference/Part Number
CAGE Information
| Code |
Company |
| 06710 |
VALLEY-TODECO INC. |
| 06950 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
| 80539 |
SPS TECHNOLOGIES LLC DBA AEROSPACE F |
| 76301 |
BOEING COMPANY THE DBA BOEING |
| 59563 |
REID PRODUCTS INC. |
| 4WL75 |
CAMCAR LLC DIV CAMCAR LLC |
| 73197 |
HI-SHEAR CORPORATION |
| U6683 |
LINREAD NORTHBRIDGE |
| 0K6Z0 |
SATURN FASTENERS INC |
| 27624 |
PAUL R. BRILES INC. DBA PB FASTENERS |
| 06725 |
SPS TECHNOLOGIES LLC DBA AIR INDUSTR |
| 0ZC92 |
HEARTLAND PRECISION FASTENERS INC. |
| 1VSL7 |
HOUSTON PRECISION FASTENER L.L.C. |
| L4528 |
LISI AEROSPACE CANADA CORP |
| 92215 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
| 17446 |
HUCK INTERNATIONAL INC. DBA ALCOA FA |
| 56878 |
SPS TECHNOLOGIES LLC DBA AEROSPACE D |
| 60516 |
WEST COAST AEROSPACE INC |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
AMS 2700, METHOD 1 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| CXCY |
PART NAME ASSIGNED BY CONTROLLING AGENCY |
SCREW, CLOSE TOLERANCE, 100 DEG COUNTERSUNK, REDUCED HEAD, HI-TORQUE, NON-MAGNETIC CRES (125 KSI FSU) |
| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| AASK |
HEAD STYLE |
FILLISTER COUNTERSUNK |
| AAJD |
THREAD CLASS |
3A |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| CMLP |
THREAD QUANTITY PER INCH |
28 |
| ABQJ |
POINT STYLE |
FLAT |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AAUR |
GRIP DIAMETER |
0.249 NOMINAL MILS AND 0.250 NOMINAL CENTIMETERS |
| CRSQ |
COUNTERSINK ANGLE |
99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| ANEE |
GRIP LENGTH |
1.313 NOMINAL INCHES |
| AASB |
FASTENER LENGTH |
1.767 INCHES MINIMUM AND 1.797 INCHES MAXIMUM |
| AASL |
HEAD DIAMETER |
0.390 INCHES MINIMUM AND 0.395 INCHES MAXIMUM |
| AASU |
HEAD HEIGHT |
0.015 INCHES MAXIMUM |
| CWDK |
POINT CHAMFER ANGLE |
45.0 MAXIMUM OF STANDARD RANGE SINGLE TREATMENT RESPONSE |
| ABQZ |
INTERNAL DRIVE STYLE |
HIGH-TORQUE |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATT |
MATERIAL |
NICKEL ALLOY 718 OVERALL |
| AASA |
THREAD LENGTH |
0.469 INCHES NOMINAL |
| FEAT |
SPECIAL FEATURES |
HEAD HAS A 1.40 DEGREE RADIUS DOME |
| SFTT |
SURFACE TREATMENT |
PASSIVATE OVERALL |
| AAUY |
POINT LENGTH |
0.045 INCHES NOMINAL |
Similar Parts
ST3M557-421 ,
ST3M557421 ,
5305-01-591-0047 ,
5305015910047 ,
015910047
,
HT4027-4-21 ,
HT4027-4-21 ,
ST3M557-4-21 ,
11923-4-21 ,
ST3M668-4-21 ,
HT4027-4-21 ,
ST3M557-4-21 ,
ST3M557-4-21 ,
HT4027-4-21 ,
HT4027-4-21 ,
ST3M557-421 ,
ST3M557-4-21 ,
ST3M557-4-21 ,
HT4027-4-21 ,
HT4027-4-21 ,
HT4027-4-21 ,
HT4027-4-21 ,
WC4027-4-21 ,