Product Details | SHOULDER SCREW

5305-00-256-6718 An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 IN.) (1.5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is designed to be driven with either a wrench or an inserted driver or both in sizes below No. 10 (0.190 IN.) (5 mm) nominal diameter. No. 10 (0.190 IN.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use SCREW, EXTERNALLY RELIEVED BODY. For items with a No. 10 (0.190 IN.) (5 mm) or larger thread diameter without an inserted driver head, use BOLT, SHOULDER. Excludes BOLT, INTERNAL WRENCHING and SCREW, CAP, SOCKET HEAD.

Part Alternates: 2637505PC30, 5305-00-256-6718, 00-256-6718, 5305002566718, 002566718

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 17 MAR 1971 00-256-6718

Drawings & Photos | NSN 5305-00-256-6718


Demand History | NSN 5305-00-256-6718

Part Number Request Date QTY Origin
5305-00-256-6718 2018-04-99 100 DIBBS
5305-00-256-6718 2017-01-24 46 DIBBS
5305-00-256-6718 2016-06-174 46 DIBBS
5305-00-256-6718 2016-04-118 1 US
5305-00-256-6718 2015-11-327 1 DIBBS
5305-00-256-6718 2015-03-85 60 DIBBS
5305-00-256-6718 2015-03-74 60 DIBBS
5305-00-256-6718 2014-03-78 52 DIBBS
5305-00-256-6718 2013-07-209 29 DIBBS

Cross Reference | NSN 5305-00-256-6718

Part Number Cage Code Manufacturer
2637505PC30 10001 NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT
2637505PC30 29372 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS
2637505PC30 84256 AVIBANK MFG., INC.
2637505PC30 92215 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS

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Technical Data | NSN 5305-00-256-6718

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 0.284 INCHES MINIMUM AND 0.314 INCHES MAXIMUM
FASTENER LENGTH 1.024 INCHES MINIMUM AND 1.089 INCHES MAXIMUM
MATERIAL STEEL CORROSION RESISTING OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT PASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
MINIMUM TENSILE STRENGTH 190000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH 170000 POUNDS PER SQUARE INCH
HEAD STYLE C44 FILLISTER
HEAD DIAMETER 0.425 INCHES MINIMUM AND 0.495 INCHES MAXIMUM
HEAD HEIGHT 0.094 INCHES MINIMUM AND 0.114 INCHES MAXIMUM
INTERNAL DRIVE STYLE D14 SLOT
SHOULDER SHAPE ROUND FIRST SHOULDER
SHOULDER DIAMETER 0.247 INCHES MINIMUM AND 0.248 INCHES MAXIMUM FIRST SHOULDER
SHOULDER LENGTH 0.630 INCHES MINIMUM AND 0.635 INCHES MAXIMUM FIRST SHOULDER
MANUFACTURERS CODE 10001
DESIGN CONTROL REFERENCE 2637505PC30

Restrictions/Controls & Freight Information | NSN 5305-00-256-6718

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 HD Naval Inventory Control Point
Mechanicsburg, PA 17055-0788
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 5305-00-256-6718

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 CodesDDoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each