|
|
|
National Stock Number:
5305-01-317-6339
Federal Supply Class:
5305
National Item Identification Number:
013176339
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:
| NAS1173-1N | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |
|
Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | THREAD QUANTITY PER INCH | 32 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.313 INCHES MINIMUM AND | | 0.363 INCHES MAXIMUM | | FASTENER LENGTH | 0.385 INCHES MINIMUM AND | | 0.415 INCHES MAXIMUM | | MATERIAL | PLASTIC POLYAMIDE LOCKING FEATURE | | STEEL COMP 4140 OR | | STEEL COMP E4340 OR | | STEEL COMP 8740 FASTENER | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR | | MIL-S-50009JDDMIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE FASTENER | | SURFACE TREATMENT | CADMIUM AND | | CHROMATE FASTENER | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE FASTENER | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | HEAD STYLE | PAN | | HEAD DIAMETER | 0.357 INCHES MINIMUM AND | | 0.373 INCHES MAXIMUM | | HEAD HEIGHT | 0.122 INCHES MINIMUM AND | | 0.132 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) | | LOCKING FEATURE | PELLET THREADS | | GRIP LENGTH | 0.052 INCHES MINIMUM AND | | 0.072 INCHES MAXIMUM | | GRIP DIAMETER | 0.188 INCHES MINIMUM AND | | 0.189 INCHES MAXIMUM | | SPECIFICATION/STANDARD DATA | 80205-NAS1173 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
|
|