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National Stock Number:
5305-00-095-3634
Federal Supply Class:
5305
National Item Identification Number:
000953634
Description:
SCREW,SHOULDER
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 IN.) (1.5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is designed to be driven with either a wrench or an inserted driver or both in sizes below No. 10 (0.190 IN.) (5 mm) nominal diameter. No. 10 (0.190 IN.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use SCREW, EXTERNALLY RELIEVED BODY. For items with a No. 10 (0.190 IN.) (5 mm) or larger thread diameter without an inserted driver head, use BOLT, SHOULDER. Excludes BOLT, INTERNAL WRENCHING and SCREW, CAP, SOCKET HEAD.
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Manufacturer Information:
| 78765 | 00198 | PRATT & WHITNEY CANADA CORP | | 78765 | 77445 | RTX CORPORATION | | EAB1533 | 81996 | U S ARMY AVIATION AND MISSILE COMMAND |
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Techincal Specification:
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.350 INCHES MINIMUM AND 2.370 INCHES MAXIMUM FIRST HOLE | | FASTENER LENGTH | 2.500 INCHES NOMINAL | | HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL | | HEAD DIAMETER | 1.182 INCHES MINIMUM AND 1.192 INCHES MAXIMUM | | HEAD HEIGHT | 0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM | | HEAD STYLE | PAN NO. 2 | | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 | | MATERIAL | STEEL COMP 8750 OVERALL | | NOMINAL THREAD DIAMETER | 0.750 INCHES | | SHANK UNTHREADED HOLE DIAMETER | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM FIRST HOLE | | SHOULDER LENGTH | 1.870 INCHES MINIMUM AND 1.890 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SPECIAL FEATURES | HOLE DRILLED IN THD END 0.375 IN. DIA; 0.375 IN. MIN 0.415 IN. MAX DEPTH; COUNTERSUNK 60 DEG; 2 DRILLED HOLES FOR COTTER PIN | | SURFACE TREATMENT | TIN OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.620 INCHES MINIMUM | | THREAD SERIES DESIGNATOR | UNF | | THREAD QUANTITY PER INCH | 32 |
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