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National Stock Number:
5305-01-628-1175
Federal Supply Class:
5305
National Item Identification Number:
016281175
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:
| JSFB40 | 81755 | LOCKHEED MARTIN CORPORATION | | JSFB40E3-7H | 66530 | CLICK BOND INC | | JSFB40E3-7H | 81755 | LOCKHEED MARTIN CORPORATION |
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Techincal Specification:
| THREAD QUANTITY PER INCH | 32 | | THREAD SURFACE FINISH | 32.0 MICROINCHES | | THREAD SERIES DESIGNATOR | UNJF | | BEARING SURFACE OF HEAD SURFACE FINISH | 32.0 MICROINCHES | | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | FASTENER LENGTH | 0.775 INCHES MINIMUM AND 0.805 INCHES MAXIMUM | | FEATURES PROVIDED | FINISHED HEAD | | HEAD DIAMETER | 0.349 INCHES MINIMUM AND 0.384 INCHES MAXIMUM | | HEAD HEIGHT | 0.080 INCHES NOMINAL | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | TORX | | LOCKING FEATURE | SLOTTED | | III PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW,CAPTIVE,100 DEG FLUSH HD,180 KSI,SPECIAL | | PROPRIETARY CHARACTERISTICS | PACS | | MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.1900 INCHES | | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5731 OR AMS 5737 NATIONAL SPEC SINGLE MATERIAL RESPONSE | | SCREW MATERIAL | IRON ALLOY 660 | | SCREW SURFACE TREATMENT | PASSIVATE | | SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2700 NATIONAL SPEC SINGLE TREATMENT RESPONSE | | SHANK SURFACE FINISH | 32.0 MICROINCHES | | SPECIAL FEATURES | HEAD TREATMENT CODE H CORRESPONDS TO TEMP RANGE -65 DEG F TO 270 DEG F;INTENDED FOR USE WITH RETAINING RING JSFM10;SHEAR MIN IN LBS IS 2250;TENSILE MIN IN LBS BASED ON REDUCED THREAD CROSS SECTIONAL AREA DUE TO TWO SLOTS EQUALS 3180;TORQUE MIN FOR RECESS IS 85 LBS;THREADED END HAS TWO SLOTS 180 DEG APART | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.312 INCHES NOMINAL |
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