Part Number
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.
CAGE Information
| Code | Company |
|---|---|
| 55345 | ALAMO AIRCRAFT SUPPLY INC |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| CMLP | THREAD QUANTITY PER INCH | 24 |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| AASL | HEAD DIAMETER | 0.752 INCHES MINIMUM AND 0.762 INCHES MAXIMUM |
| AAJD | THREAD CLASS | 3A |
| AASB | FASTENER LENGTH | 1.515 INCHES MINIMUM AND 1.535 INCHES MAXIMUM |
| CRZS | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 0.115 INCHES MINIMUM FIRST HOLE AND 0.125 INCHES MAXIMUM FIRST HOLE |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASK | HEAD STYLE | FLAT COUNTERSUNK |
| AASA | THREAD LENGTH | 0.400 INCHES NOMINAL |
| 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 |
| CQBC | MINIMUM TENSILE STRENGTH | 17000 POUNDS PER SQUARE INCH |
| AAUR | GRIP DIAMETER | 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM |
| AAWB | SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES MINIMUM FIRST HOLE AND 0.111 INCHES MAXIMUM FIRST HOLE |
| ANEE | GRIP LENGTH | 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | 23-105 FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| ABQZ | INTERNAL DRIVE STYLE | HIGH-TORQUE |
| AHYM | NOMINAL THREAD DIAMETER | 0.375 INCHES |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |