Product Details | SOCKET HEAD CAP SCREW

5305-01-366-1890 An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.

Part Alternates: NAS1351N4H10P, 10113771 , 5305-01-366-1890, 01-366-1890, 5305013661890, 013661890

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 22 OCT 1992 01-366-1890

Drawings & Photos | NSN 5305-01-366-1890


Demand History | NSN 5305-01-366-1890

Part Number Request Date QTY Origin
5305-01-366-1890 2025-10-286 1 DIBBS
5305-01-366-1890 2025-08-224 53 DIBBS
5305-01-366-1890 2018-07-205 700 United States

Cross Reference | NSN 5305-01-366-1890

Part Number Cage Code Manufacturer
NAS1351N4H10P 80205 NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES

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Technical Data | NSN 5305-01-366-1890

Characteristic Specifications
THREAD SERIES DESIGNATOR UNRF
NOMINAL THREAD DIAMETER 0.250 INCHES
THREAD QUANTITY PER INCH 28
THREAD CLASS 3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 1.000 INCHES NOMINAL
FASTENER LENGTH 1.000 INCHES NOMINAL
MATERIAL IRON ALLOY 660 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION AMS5731 ASSN STD SINGLE MATERIAL RESPONSE AND AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT CADMIUM OVERALL
HARDNESS RATING 33.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH 160000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH 120000 POUNDS PER SQUARE INCH
HEAD STYLE C49 FLAT CHAMFER
HEAD DIAMETER 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
HEAD HEIGHT 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
INTERNAL DRIVE STYLE D5 HEXAGON
WIDTH ACROSS FLATS 0.188 INCHES MINIMUM AND 0.190 INCHES MAXIMUM
HOLE CONFIGURATION STYLE E11 ROUND INTERNAL HEXAGON
HOLE TYPE DRILLED
HOLE QUANTITY 6
HOLE DIAMETER 0.044 INCHES MINIMUM AND 0.050 INCHES MAXIMUM
SPECIFICATION/STANDARD DATA 80205-NAS1351 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD

Restrictions/Controls & Freight Information | NSN 5305-01-366-1890

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 096640 SCREWS, IRON OR STEEL
Less than car load rating
Less than truck load rating Q 70.0
Water commodity Code 713 unknown
Originating Activity Code ZG Germany
ZH
ZJ
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

Management | NSN 5305-01-366-1890

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
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