Product Details | MACHINE SCREW

5305-00-984-4639 An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below No. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal 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. Excludes BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; and SCREW, ASSEMBLED WASHER. See also, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; and SCREW, CAP SOCKET HEAD.

Part Alternates: BACB30EMP4L7, BACB30EM-P4L7, 5305-00-984-4639, 00-984-4639, 5305009844639, 009844639

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1962 00-984-4639

Drawings & Photos | NSN 5305-00-984-4639


Demand History | NSN 5305-00-984-4639

Part Number Request Date QTY Origin
5305-00-984-4639 2016-10-299 63 DIBBS

Cross Reference | NSN 5305-00-984-4639

Part Number Cage Code Manufacturer
BACB30EM-P4L7 73197 HI-SHEAR CORPORATION
BACB30EM-P4L7 80539 SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP
BACB30EM-P4L7 92215 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS
BACB30EM-P4L7 L4528 LISI AEROSPACE CANADA CORP
BACB30EMP4L7 08903 THE BOEING COMPANY DBA BOEING
BACB30EMP4L7 81205 THE BOEING COMPANY DBA BOEING

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Technical Data | NSN 5305-00-984-4639

Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER 0.250 INCHES
THREAD QUANTITY PER INCH 28
THREAD CLASS 3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.425 INCHES MINIMUM
FASTENER LENGTH 0.863 INCHES NOMINAL
SCREW MATERIAL STEEL COMP E4340
SCREW MATERIAL DOCUMENT AND CLASSIFICATION MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE
SCREW SURFACE TREATMENT NICKEL AND CADMIUM
MINIMUM TENSILE STRENGTH 160000 POUNDS PER SQUARE INCH
HEAD STYLE A23 PAN
HEAD DIAMETER 0.473 INCHES NOMINAL
HEAD HEIGHT 0.162 INCHES NOMINAL
INTERNAL DRIVE STYLE B6 HIGH-TORQUE
SPECIFICATION/STANDARD DATA B1205-BACB30EM MANUFACTURERS STANDARD

Restrictions/Controls & Freight Information | NSN 5305-00-984-4639

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: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