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National Stock Number:
5305-01-025-4374
Federal Supply Class:
5305
National Item Identification Number:
010254374
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:
| 12705L-5C-24 | 56878 | SPS TECHNOLOGIES, LLC | | 12705L-5C-24 | 80539 | SPS TECHNOLOGIES, LLC | | 12705L5C24 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH | | AC-3313-36 | 52861 | TLT-BABCOCK, INC. | | AC-331336 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH | | AC129436 | 52861 | TLT-BABCOCK, INC. | | AC129436 | 56878 | SPS TECHNOLOGIES, LLC | | AC129436 | 8L513 | AIR INDUSTRIES MACHINING, CORP. |
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Techincal Specification:
| FASTENER LENGTH | 1.914 INCHES MINIMUM AND 1.940 INCHES MAXIMUM | | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL | | HEAD DIAMETER | 0.419 INCHES MINIMUM AND 0.438 INCHES MAXIMUM | | HEAD HEIGHT | 0.156 INCHES MINIMUM AND 0.213 INCHES MAXIMUM | | HEAD STYLE | KNURLED NO. 1 | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL | STEEL OVERALL | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SHOULDER DIAMETER | 0.310 INCHES MINIMUM AND 0.311 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER LENGTH | 1.497 INCHES MINIMUM AND 1.503 INCHES MAXIMUM FIRST SHOULDER | | SPECIAL FEATURES | STRIP TYPE LOCKING ELEMENT ON THREADS | | WIDTH ACROSS FLATS | 0.156 INCHES MAXIMUM | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.342 INCHES MINIMUM AND 0.362 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNRC |
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