|
|
|
National Stock Number:
5305-01-622-6163
Federal Supply Class:
5305
National Item Identification Number:
016226163
Description:
SCREW,CLOSE TOLERANCE
Detail:
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.
|
Manufacturer Information:
| WC331K5-9 | 60516 | WEST COAST AEROSPACE, INC. |
|
Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJC | | NOMINAL THREAD DIAMETER | 0.1640 INCHES | | THREAD QUANTITY PER INCH | 32 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.280 INCHES NOMINAL | | FASTENER LENGTH | 0.8325 INCHES MINIMUM AND | | 0.8525 INCHES MAXIMUM | | MATERIAL | TITANIUM ALLOY OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE OR | | AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | ALUMINUM OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | BMS10-85, TYPE 1, CLASS A MFR REF SINGLE TREATMENT RESPONSE OVERALL | | HEAD STYLE | COUNTERSUNK CYLINDRICAL CONVEX | | HEAD MAJOR DIAMETER | 0.2532 INCHES MINIMUM AND | | 0.2605 INCHES MAXIMUM | | COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL | | INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE | | GRIP LENGTH | 0.5625 INCHES NOMINAL | | GRIP DIAMETER | 0.1625 INCHES MINIMUM AND | | 0.1635 INCHES MAXIMUM | | FEATURES PROVIDED | CETYL ALCOHOL LUBRICANT | | SPECIAL FEATURES | ITEM HAS A HEX HOLE IN THE END OF IT THAT IS 0.0791 - 0.0806 INCHES ACROSS THE FLATS AND 0.080 INCHES DEEP. |
|
|