Fastener Commonality Deep Dive Yields Navy Supply System Efficiencies

Joseph Battista, NSWCCD-SSES Public Affairs
Thursday, April 18, 2013
Credit: Naval Surface Warfare Center

Naval Sea Systems Command completed a fleet-wide fastener study, identifying and recommending the removal of thousands of fasteners from the Navy supply system.

The 16-week supply system review identified 108,000 dormant fasteners-fasteners with no contract, requisition or maintenance history in the past five years-and 3,200 duplicate fasteners where two or more identical fasteners had different stock numbers.

The NAVSEA Commonality Project management team led the study, collaborating with in-service engineering agents, technical warrant holders, program offices, shipyards, shipbuilders, the Defense Logistics Agency and original equipment manufacturers. 

"This fastener deep dive focused on basically anything used to secure two things together on a ship," said Bill Moss, Commonality Project Management Team lead with NSWC Carderock's Ship Systems Engineering Station (SSES) in Philadelphia. "This includes all the nuts, bolts, rivets, and pins."

John Sofia leads the NAVSEA commonality program established in 2007 to find cross-platform cost savings and avoidance opportunities. "The program has taken a systems level approach to define opportunities which the Navy may be able to take advantage," said Sofia, "The commonality fastener deep dive is an example of using a supply chain approach to identify potential savings."

The Defense Logistics Agency documents the cost per year to maintain a stock number between $200 and $500 each, according to the Tessa Kashuba, a member of the Commonality Project management team.

"The savings may seem small," but when taken in context of number of dormant and duplicate [stock numbers], the cost escalates rapidly," said Kashuba, "However, we have to be careful when we remove an item because we don't want to eliminate something that's still needed. For example, we may discover a fastener that hasn't been ordered in a number of years, but then find out a ship is coming into an availability period that may require that fastener."

Another focus of the study was to work with shipbuilders and shipyards to familiarize them with NAVSEA's Virtual Shelf. Virtual Shelf is an electronic repository of standard architectures, design guidelines, specifications and parts lists for ship systems.

"Shipbuilders may go directly to vendors to purchase fasteners during ship construction," said Dana Melvin, Commonality Project team member. "The fasteners they purchase may not have a [stock number], and must be added into the system if there isn't a comparable fastener available. Our goal is to get the builders to use fasteners that already have [stock numbers]."

According to Fredrick Kachele, Metallurgy and Fasteners Branch subject matter expert, shipyards machine their own fasteners, or do a local small-quantity purchase, when they cannot find a [stock number] for the fastener they need. Both options are very expensive, but NAVSEA's Virtual Shelf can help users find required, qualified equipment at lowest total ownership cost.

"The Virtual Shelf eliminates hours of fruitless searches for a part," said Kachele. "It leads the searcher to a comparable fastener that will meet their needs. Prior to this, there was no reliable way to find a replacement part without knowing that NSN.  New items purchased outside of the Virtual Shelf may need to go through qualification testing, which costs the Navy money."

For more information about the Commonality Program, visit acc.dau.mil/commonality.

The Ship Systems Engineering Station, Philadelphia, is a major component of Naval Surface Warfare Center Carderock Division and a NAVSEA field activity. It is the Navy's principal test and evaluation station and in-service engineering agent for all hull, mechanical and electrical ship systems and equipment and has the capability to test and engineer the full range of shipboard systems and equipment from full-scale propulsion systems to digital controls and electric power systems.
 

Maritime Reporter September 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Ship Repair & Conversion

Braemar Hosts Insurance Experts

Braemar (incorporating The Salvage Association) welcomed an invited group of marine insurance professionals onto its specialist port and shipyard familiarization

Minimize the Risks, Think Cold Bonding

Cold bonding: a safer alternative to hot work Hot work required for welding, grinding and cutting operations presents certain potential hazards when conducted

Goltens Opens Houston Service Facility

Goltens Worldwide today announced the opening of its new full service facility located within two miles from the Port of Houston. Following months of planning and machinery and equipment installation,

Navy

Keel Laid, Fabrication Started on 2 Navy Warships

This week, General Dynamics Bath Iron Works celebrated two milestone events for the Arleigh Burke-class program. On October 30, Bath Iron Works held a keel laying

Partnerships Key to Caribbean Maritime Security

Planning and execution of port and maritime safety and security in Caribbean region is all about partnerships Maritime security and safety experts are meeting in Nassau,

Fincantieri & Vittoria Shipyard Join Forces

During the 24th edition of Euronaval, the most prestigious event in the world for naval defense, Fincantieri, one of the major shipbuilding groups worldwide, and Vittoria Shipyard,

Marine Equipment

Industrial Pressure Washers Kill Viruses

Water Cannon pressure washers utilized to fight influenza - clean and sanitize large areas Water Cannon Pressure Washers deliver a wide swath of low pressure 180 degree F.

Partners Deliver Modular Floating Tidal Energy Platform

A group of offshore companies, including Bluewater, Damen and Van Oord among others, has partnered for a floating tidal energy platform a project to generate clean electricity,

Maersk Interceptor Named in Norway

In a ceremony held at GMC Marine Partners yard in Mekjarvik in Norway, Mrs. Anita Utseth, Senior Vice President in Det norske oljeselskab ASA (Det norske) had

 
 
Maritime Careers / Shipboard Positions Maritime Standards Naval Architecture Navigation Offshore Oil Pipelines Pod Propulsion Salvage Shipbuilding / Vessel Construction Winch
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1660 sec (6 req/sec)