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National Stock Number:
5306-01-020-2439
Federal Supply Class:
5306
National Item Identification Number:
010202439
Description:
BOLT,EXTERNALLY RELIEVED BODY
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercuts for thread relief). It is No. 10 (0.190 IN.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, INTERNAL WRENCHING and THUMBSCREW. See also SCREW, EXTERNALLY RELIEVED BODY.
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Manufacturer Information:
| SPE16N25 | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG | | SPE16N25 | 52096 | ROLLS-ROYCE INC | | SPE16N25 | K0378 | ROLLS-ROYCE PLC | | SPE16N25 | K0680 | ROLLS-ROYCE AIRLINES |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.750 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | EN165,FSCM K0378 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | DTD904,FSCM K0378 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | HEAD HEIGHT | 0.310 INCHES MINIMUM AND | | 0.320 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.742 INCHES MINIMUM AND | | 0.750 INCHES MAXIMUM | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 2 | | FIRST DIAMETER FROM HEAD | 0.496 INCHES MINIMUM AND | | 0.500 INCHES MAXIMUM | | SECOND DIAMETER FROM HEAD | 0.415 INCHES MINIMUM AND | | 0.425 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.250 INCHES NOMINAL | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 1.500 INCHES NOMINAL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
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