Product Details | EXTERNALLY RELIEVED BODY SCREW

5305-00-721-4620 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: 9158867, 5305-00-721-4620, 00-721-4620, 5305007214620, 007214620

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-721-4620

Drawings & Photos | NSN 5305-00-721-4620


Cross Reference | NSN 5305-00-721-4620

Part Number Cage Code Manufacturer
9158867 18876 U S ARMY AVIATION AND MISSILE COMMAND

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Technical Data | NSN 5305-00-721-4620

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 0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM
FASTENER LENGTH 0.797 INCHES MINIMUM AND 0.828 INCHES MAXIMUM
MATERIAL STEEL COMP 4140H OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION ASTM A304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT CADMIUM AND CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
MINIMUM TENSILE STRENGTH 130000 POUNDS PER SQUARE INCH
HEAD STYLE C33 PAN NO. 2
HEAD DIAMETER 0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM
HEAD HEIGHT 0.110 INCHES MINIMUM AND 0.122 INCHES MAXIMUM
INTERNAL DRIVE STYLE D1 CROSS RECESS TYPE 1
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY 1
FIRST DIAMETER FROM HEAD 0.115 INCHES MINIMUM AND 0.120 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER 0.547 INCHES MINIMUM AND 0.578 INCHES MAXIMUM

Restrictions/Controls & Freight Information | NSN 5305-00-721-4620

Category Code Description
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.
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
NMF Description 093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3)
Less than car load rating
Less than truck load rating W Rating Variable
Water commodity Code 713 unknown
Originating Activity Code XX
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable