Product Details | EXTERNALLY RELIEVED BODY SCREW

5305-01-206-2156 An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercut for thread relief). It is No. 0 (0.060 IN.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below No. 10 (0.190 IN.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and 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. See also BOLT, EXTERNALLY RELIEVED BODY and BOLT, INTERNAL WRENCHING.

Part Alternates: 1320053001, 13200530-01, 1603317, 5265828018, 5265828-018, 6161SS2528, 6161-SS-2528, 5305-01-206-2156, 01-206-2156, 5305012062156, 012062156

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 16 APR 1985 01-206-2156

Drawings & Photos | NSN 5305-01-206-2156


Demand History | NSN 5305-01-206-2156

Part Number Request Date QTY Origin
5305-01-206-2156 2011-08-221 100 DIBBS
5305-01-206-2156 2010-08-216 132 DIBBS
5305-01-206-2156 2010-06-181 132 DIBBS
5305-01-206-2156 2010-06-165 132 DIBBS

Cross Reference | NSN 5305-01-206-2156

Part Number Cage Code Manufacturer
13200530-01 27963 GENERAL DYNAMICS INFORMATION SYSTEMS INC.
13200530-01 3CYA2 GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC.
1603317 56232 LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN
5265828-018 53711 NAVAL SEA SYSTEMS COMMAND
6161-SS-2528 06540 NEW HAVEN MFG CORP AMATOM ELECTRONIC HARDWARE DIV
6161-SS-2528 1YGB8 CAREY MANUFACTURING COMPANY, INC. DBA AMATOM ELECTRONIC HARDWARE

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Technical Data | NSN 5305-01-206-2156

Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER 0.250 INCHES
THREAD QUANTITY PER INCH 28
THREAD CLASS 2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.360 INCHES MINIMUM AND 0.400 INCHES MAXIMUM
FASTENER LENGTH 1.230 INCHES MINIMUM AND 1.270 INCHES MAXIMUM
MATERIAL STEEL COMP 303 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT PASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HEAD STYLE C66 KNURLED NO. 1
HEAD DIAMETER 0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM
HEAD HEIGHT 0.230 INCHES MINIMUM AND 0.270 INCHES MAXIMUM
INTERNAL DRIVE STYLE D14 SLOT
POINT STYLE F16 CONE
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY 1
FIRST DIAMETER FROM HEAD 0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER 0.965 INCHES MINIMUM AND 0.975 INCHES MAXIMUM

Restrictions/Controls & Freight Information | NSN 5305-01-206-2156

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.
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 KZ Defense Supply Center Philadelphia
Philadelphia, PA 19101
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 5305-01-206-2156

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