Product Details | EXTERNALLY RELIEVED BODY SCREW

5305-00-764-2770 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: 0N176281, 5305-00-764-2770, 00-764-2770, 5305007642770, 007642770

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 14 APR 1972 00-764-2770

Drawings & Photos | NSN 5305-00-764-2770


Cross Reference | NSN 5305-00-764-2770

Part Number Cage Code Manufacturer
0N176281 98230 NATIONAL SECURITY AGENCY

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Technical Data | NSN 5305-00-764-2770

Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER 0.190 INCHES
THREAD QUANTITY PER INCH 24
THREAD CLASS 2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.220 INCHES MAXIMUM
FASTENER LENGTH 0.660 INCHES NOMINAL
MATERIAL STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION 66 FED STD ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENT PASSIVATE OVERALL
HEAD STYLE C66 KNURLED NO. 1
HEAD DIAMETER 0.440 INCHES NOMINAL
HEAD HEIGHT 0.260 INCHES NOMINAL
INTERNAL DRIVE STYLE D14 SLOT
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY 1
FIRST DIAMETER FROM HEAD 0.135 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER 0.440 INCHES NOMINAL
MANUFACTURERS CODE 98230
DESIGN CONTROL REFERENCE 0N176281

Restrictions/Controls & Freight Information | NSN 5305-00-764-2770

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:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information

Management | NSN 5305-00-764-2770

Category Code Description
Cognizance Codes5NConsumable cryptologic material
Naval Inventory Control Point, Mechanicsburg
Source of SupplyFPDAir Force Cryptologic Support Center (ESC)
San Antonio, TX 78243-5000
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesVTERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
Q
EA : Each