Product Details | EXTERNALLY RELIEVED BODY BOLT

5306-01-271-2042 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.

Part Alternates: 6886218153, 6886218-153, 5306-01-271-2042, 01-271-2042, 5306012712042, 012712042

Hardware and Abrasives | Bolts

Supply Group (FSG) NSN Assign. NIIN
53 20 JAN 1988 01-271-2042

Drawings & Photos | NSN 5306-01-271-2042


Cross Reference | NSN 5306-01-271-2042

Part Number Cage Code Manufacturer
6886218-153 73342 ALLISON TRANSMISSION, INC.

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Technical Data | NSN 5306-01-271-2042

Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER 0.250 INCHES
THREAD QUANTITY PER INCH 28
THREAD CLASS 2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
FASTENER LENGTH 2.240 INCHES MINIMUM AND 2.260 INCHES MAXIMUM
MATERIAL STEEL COMP 1020 OVERALL
HEAD STYLE C1 HEXAGON
HEAD HEIGHT 0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM
WIDTH BETWEEN FLATS 0.434 INCHES MINIMUM AND 0.437 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY 2
FIRST DIAMETER FROM HEAD 0.190 INCHES MINIMUM AND 0.200 INCHES MAXIMUM
THIRD DIAMETER FROM HEAD 0.175 INCHES MINIMUM AND 0.185 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER 0.975 INCHES MINIMUM AND 0.995 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER 1.040 INCHES MINIMUM AND 1.060 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER 1.990 INCHES MINIMUM AND 2.020 INCHES MAXIMUM

Restrictions/Controls & Freight Information | NSN 5306-01-271-2042

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Electro-static Discharge Susceptible:ANo known Electrostatic Discharge (ESD) or Electromagnetic Interference (EMI) sensitivity
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
No Freight Information

Management | NSN 5306-01-271-2042

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesJNOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each