Product Details | EXTERNALLY RELIEVED BODY SCREW

5305-01-447-8656 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 undercut for thread relief). It is No. 0 (0.060 IN.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below No. 10 (0.190 IN.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and 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. See also BOLT, EXTERNALLY RELIEVED BODY and BOLT, INTERNAL WRENCHING.

Part Alternates: 17G11103127, 17G111031-27, 5305-01-447-8656, 01-447-8656, 5305014478656, 014478656

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 15 AUG 1997 01-447-8656

Drawings & Photos | NSN 5305-01-447-8656


Cross Reference | NSN 5305-01-447-8656

Part Number Cage Code Manufacturer
17G111031-27 88277 BOEING COMPANY, THE DBA BOEING

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Technical Data | NSN 5305-01-447-8656

Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER 0.250 INCHES
THREAD QUANTITY PER INCH 28
THREAD CLASS 3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.730 INCHES MAXIMUM
FASTENER LENGTH 2.140 INCHES NOMINAL
MATERIAL IRON ALLOY 660 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT OXIDE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION MIL-C-13924, CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
HEAD STYLE C49 FLAT CHAMFER
HEAD DIAMETER 0.550 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
HEAD HEIGHT 0.368 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
INTERNAL DRIVE STYLE D5 HEXAGON
WIDTH ACROSS FLATS 0.312 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY 3
FIRST DIAMETER FROM HEAD 0.3678 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM
SECOND DIAMETER FROM HEAD 0.280 INCHES NOMINAL
THIRD DIAMETER FROM HEAD 0.2581 INCHES MINIMUM AND 0.2591 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER 1.015 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER 1.195 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER 1.297 INCHES NOMINAL

Restrictions/Controls & Freight Information | NSN 5305-01-447-8656

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
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 5305-01-447-8656

Category Code Description
Materiel Management Aggregation CodeBATB:C-17 PROGRAM
Price ValidationN The current standard price in Catalog Management Data (CMD) has not analyzed or coded for LP/LM.
  • The price has not been analyzed or reviewed for accuracy.
  • ZOP or Standard price challenges are permissible, but must be supported with adequate justification. However, if coded for Local Purchase (LP) or Fabrication/Manufacture as indicated with an (LM) Acquisition Advice Code of ?L? or?F?,the case must be evaluated locally where purchased or fabricated.
Budget CodeS 1557X3010:Aircraft Replenishment Spares
Source of SupplyF77Boeing Military Transportation Aircraft
Los Angeles, CA 90307-3044
AgencyDFDepartment of the Air Force
Service OrganizationFU.S. Air Force
ReparabilityNStock Fund (except Munitions)
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