Product Details | HEXAGON HEAD CAP SCREW

5305-01-138-3788 An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes BOLT,MACHINE; BOLT,EXTERNALLY RELIEVED BODY; BOLT,INTERNAL WRENCHING; and SCREW,CAP,SOCKET HEAD.

Part Alternates: MS35289344, MS35289-344, MS90725344, MS90725-344, 5305-01-138-3788, 01-138-3788, 5305011383788, 011383788

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 11-SEP-82 01-138-3788

Drawings & Photos | NSN 5305-01-138-3788


Cross Reference | NSN 5305-01-138-3788

Part Number Cage Code Manufacturer
B1821BH200C450N 80204 AMERICAN NATIONAL STANDARDS INSTITUTE, INCORPORATED
CJ67290PC 17 75394 EMERSON POWER TRANSMISSION CORPORATION
MS35289-344 96906 MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS
MS90725-344 80205 NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES
MS90725-344 96906 MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS
MS90728-344 96906 MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS

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Technical Data | NSN 5305-01-138-3788

Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER 2.000 INCHES
THREAD QUANTITY PER INCH 4-1/2
THREAD CLASS 2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 4.312 INCHES MINIMUM AND 4.500 INCHES MAXIMUM
FASTENER LENGTH 4.312 INCHES MINIMUM AND 4.500 INCHES MAXIMUM
MATERIAL STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION SAE GR 5 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 SINGLE TREATMENT RESPONSE OVERALL
MINIMUM TENSILE STRENGTH 90000 POUNDS PER SQUARE INCH
HEAD STYLE C1 HEXAGON
HEAD HEIGHT 1.175 INCHES MINIMUM AND 1.263 INCHES MAXIMUM
WIDTH BETWEEN FLATS 2.900 INCHES MINIMUM AND 3.000 INCHES MAXIMUM

Restrictions/Controls & Freight Information | NSN 5305-01-138-3788

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