Product Details | EXTERNALLY RELIEVED BODY SCREW

5305-01-187-9042 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: 32186233, 321862-33, 5305-01-187-9042, 01-187-9042, 5305011879042, 011879042

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 27 AUG 1984 01-187-9042

Drawings & Photos | NSN 5305-01-187-9042


Cross Reference | NSN 5305-01-187-9042

Part Number Cage Code Manufacturer
321862-33 96214 RAYTHEON COMPANY DBA RAYTHEON

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Technical Data | NSN 5305-01-187-9042

Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER 0.138 INCHES
THREAD QUANTITY PER INCH 32
THREAD CLASS 2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.188 INCHES NOMINAL
FASTENER LENGTH 0.440 INCHES MINIMUM
MATERIAL STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION 66 FED STD ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENT OXIDE FILM OVERALL
HEAD STYLE C32 PAN
HEAD DIAMETER 0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM
HEAD HEIGHT 0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM
INTERNAL DRIVE STYLE D1 CROSS RECESS TYPE 1
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY 1
FIRST DIAMETER FROM HEAD 0.102 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER 0.692 INCHES NOMINAL

Restrictions/Controls & Freight Information | NSN 5305-01-187-9042

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
No Freight Information