|
|
|
National Stock Number:
5305-01-615-4916
Federal Supply Class:
5305
National Item Identification Number:
016154916
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:
| NAS1121V6H | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |
|
Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJC | | THREAD QUANTITY PER INCH | 32.0 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | FASTENER LENGTH | 0.651 INCHES NOMINAL | | MATERIAL | TITANIUM ALLOY FASTENER | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS4967 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE FASTENER | | HEAD STYLE | FLAT FILLISTER | | HEAD DIAMETER | 0.221 INCHES MINIMUM AND | | 0.226 INCHES MAXIMUM | | HEAD HEIGHT | 0.074 INCHES MINIMUM AND | | 0.086 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) | | GRIP LENGTH | 0.375 INCHES NOMINAL | | GRIP DIAMETER | 0.211 INCHES NOMINAL | | SPECIAL FEATURES | SHORT THREAD;DRILLED HARD | | PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW,MACHINE-FLAT FILISTER HEAD,CLOSE TOLERANCE |
|
|