Product Details | SOCKET HEAD CAP SCREW

5305-01-027-4553 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: NAS1189E4P10, BAS1189E4P10, 5305-01-027-4553, 01-027-4553, 5305010274553, 010274553

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 18 SEP 1976 01-027-4553

Drawings & Photos | NSN 5305-01-027-4553


Demand History | NSN 5305-01-027-4553

Part Number Request Date QTY Origin
5305-01-027-4553 2025-08-217 71 DIBBS
5305-01-027-4553 2020-08-237 900 Singapore
5305-01-027-4553 2020-08-237 900 Singapore
5305-01-027-4553 2020-01-16 900 Singapore
NAS1189E4P10 2015-03-76 50 United States
5305-01-027-4553 2015-02-47 10000 DIBBS
5305-01-027-4553 2014-01-10 16 United States
NAS1189E4P10 2014-01-09 16 US
NAS1189E4P10 2011-09-244 100 United States
NAS1189E4P10 2011-04-116 35 US
NAS1189E4P10 2009-11-314 100 United States

Cross Reference | NSN 5305-01-027-4553

Part Number Cage Code Manufacturer
BAS1189E4P10 92215 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS
NAS1189E4P10 04348 LAWRENCE ENGINEERING AND SUPPLY INC
NAS1189E4P10 07679 HARDWARE SPECIALTY CO. INC.
NAS1189E4P10 07851 NOR-CAL SUPPLY CO.INC.
NAS1189E4P10 08938 AIR INDUSTRIES CO INC
NAS1189E4P10 16941 LONG-LOK FASTENERS CORPORATION
NAS1189E4P10 17446 HUCK INTERNATIONAL, INC. DBA ALCOA FASTENING SYSTEMS
NAS1189E4P10 30902 F AND C SALES INC
NAS1189E4P10 50568 APCOM INC
NAS1189E4P10 53606 PLASTIC AND METAL PRODUCTS CORPORATION
NAS1189E4P10 56357 ND INDUSTRIES, INC. DIV EASTERN DIVISION
NAS1189E4P10 56878 SPS TECHNOLOGIES, LLC DBA AEROSPACE DIVISION
NAS1189E4P10 58998 EMHART TEKNOLOGIES LLC DBA FASTENER INNOVATION TECHNOLOGY
NAS1189E4P10 73197 HI-SHEAR CORPORATION
NAS1189E4P10 80205 NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES
NAS1189E4P10 80539 SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP
NAS1189E4P10 97928 HUCK INTL INC
NAS1189E4P10 F7652 B E AEROSPACE CONSUMABLESMANAGEMENT DEUX SAS

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Technical Data | NSN 5305-01-027-4553

Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER 0.250 INCHES
THREAD QUANTITY PER INCH 28
THREAD CLASS 3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.523 INCHES MINIMUM AND 0.554 INCHES MAXIMUM
FASTENER LENGTH 0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
MATERIAL IRON ALLOY 660 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION AMS 7478 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT PASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING 24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM YIELD STRENGTH 85000 POUNDS PER SQUARE INCH
HEAD STYLE C50 FLAT COUNTERSUNK
HEAD DIAMETER 0.491 INCHES MINIMUM AND 0.507 INCHES MAXIMUM
COUNTERSINK ANGLE 100.0 DEGREES NOMINAL
INTERNAL DRIVE STYLE D1 CROSS RECESS TYPE 1
LOCKING FEATURE PATCH OR STRIP THREADS
SURFACE FINISH 32.0 MICROINCHES BEARING SURFACE OF HEAD 125.0 MICROINCHES TOP OF HEAD 32.0 MICROINCHES THREADS
SPECIFICATION/STANDARD DATA 80205-NAS1189 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD

Restrictions/Controls & Freight Information | NSN 5305-01-027-4553

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
Electro-static Discharge Susceptible:ANo known Electrostatic Discharge (ESD) or Electromagnetic Interference (EMI) sensitivity
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
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 GX HQ Defense Logistics Agency, Enterprise Business
Systems
Fort Belvoir, VA 22060
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 5305-01-027-4553

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 CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
M
EA : Each