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National Stock Number:
5305-00-513-9988
Federal Supply Class:
5305
National Item Identification Number:
005139988
Description:
SCREW,MACHINE
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below No. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; and SCREW, ASSEMBLED WASHER. See also, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; and SCREW, CAP SOCKET HEAD.
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Manufacturer Information:
| 5139988 | 19200 | US ARMY ARDEC RDECOM | | 5139988 | 19205 | SPRINGFIELD ARMORY |
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Techincal Specification:
| FASTENER LENGTH | 0.390 INCHES NOMINAL | | HEAD HEIGHT | 0.390 INCHES NOMINAL | | HEAD MINOR DIAMETER | 0.408 INCHES NOMINAL | | HEAD STYLE | SPLINE DRIVE SHEAR HEAD | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | ASTMA108 ASSN STD SINGLE MATERIAL RESPONSE | | SCREW MATERIAL | STEEL | | SPECIAL FEATURES | INCLUDES EXTERNAL SERRATIONS:24;PITCH DIAMETER:0.3906 IN;MAJOR DIA:0.408 IN;CIRCULAR TOOTH WIDTH,MIN DIM:0.022 IN;MAX EFFECTIVE W/GAGE:0.025 IN;MATES W/PN 5139987;FINAL PROTECTIVE FINISH;MANGANESE PHOSPHATE BASE,TYPE M,CLASS 1,W/VV-L-800 SUPPLEMENTARY OIL TREATMENT OR ZINC PHOSPHATE BASE,TYPE Z,CLASS 1,W/VV-L-800 SUPPLEMENTARY OIL TREATMENT | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.950 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 16 | | THREAD SERIES DESIGNATOR | UNC |
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