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National Stock Number:
5305-01-600-9666
Federal Supply Class:
5305
National Item Identification Number:
016009666
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.
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Manufacturer Information:
| PMT602-20P | 05755 | PHILLIPS SCREW CO RULE INDUSTRIES DIV | | PMT602-20P | 06710 | VALLEY-TODECO, INC. | | PMT602-20P | 06725 | SPS TECHNOLOGIES, LLC | | PMT602-20P | 17446 | HUCK INTERNATIONAL, INC | | PMT602-20P | 1RC86 | HOWMET GLOBAL FASTENING SYSTEMS INC | | PMT602-20P | 56878 | SPS TECHNOLOGIES, LLC | | PMT602-20P | 80539 | SPS TECHNOLOGIES, LLC | | PMT602-20P | 82224 | JOHN HASSALL, INC. |
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Techincal Specification:
| FASTENER LENGTH | 1.250 INCHES NOMINAL | | GRIP DIAMETER | 0.164 INCHES MAXIMUM | | GRIP LENGTH | 1.250 INCHES NOMINAL | | HEAD DIAMETER | 0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM | | HEAD HEIGHT | 0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM | | HEAD STYLE | PAN | | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) | | MATERIAL | STEEL COMP 4140 OVERALL OR STEEL COMP 4340 OVERALL OR STEEL COMP 8740 OVERALL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | MORTORQ SPIRAL DRIVE SCREW,MACHINE-AIRCRAFT,PAN HEAD,RECESS FULL THREAD | | PROPRIETARY CHARACTERISTICS | PACS | | NOMINAL THREAD DIAMETER | 0.164 INCHES | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.250 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 32 | | THREAD SERIES DESIGNATOR | UNJC |
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