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 Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter April 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Ship Repair & Conversion

Saga Shipholding’s Optimarin Experience Drives BWT Orders

Ballast water treatment (BWT) specialist Optimarin has signed a contract with Saga Shipholding for the provision of three of its Optimarin Ballast Systems (OBS).

Damen Opens US Office

Damen Shipyards Group has announced the opening of a new branch office in Houston, Texas. This expansion, under the name of Damen North America, meets the increasing

Conquest Installs 850t Crane on Allseas Solitaire

Conquest Offshore was contracted by Allseas to remove a 300-ton crane and transport and install a 850-ton Huisman crane on board of one of the largest pipe-lay vessels in the world, Allseas Solitaire.

Navy

BAE Systems Bags USN Award for Submarine Propulsors

BAE Systems has received a $72 million contract from the U.S. Navy to produce and deliver propulsor systems for Block IV Virginia-class (SSN 774) submarines. The

This Day In Naval History: May 2

1863 - During the Civil War, the steam screw sloop Sacramento, commanded by Captain Charles S. Boggs, seizes the British blockade-runner Wanderer off Murrells Inlet, N.

VDRs Refit on UK Royal Fleet Auxiliary Ships

Danelec Marine informs it has supplied new-generation Voyage Data Recorders (VDRs) for three U.K. Royal Fleet Auxiliary (RFA) Bay-Class Landing Ship Dock (LSD) vessels.

Marine Equipment

MacGregor Launches Compact Pusnes RamWindlass

MacGregor, part of Cargotec, continues to add to its market-leading Pusnes product range and its latest introduction is a Pusnes RamWindlass. The new windlass is

Growing Presence of Damen FCS 2610's in O&G Markets

The Damen Shipyards Group’s Fast Crew Supplier (FCS) 2610 is proving to be every bit as effective in the oil and gas sector as it is in the offshore wind industry.

BAE Systems Bags USN Award for Submarine Propulsors

BAE Systems has received a $72 million contract from the U.S. Navy to produce and deliver propulsor systems for Block IV Virginia-class (SSN 774) submarines. The

 
 
Maritime Contracts Maritime Security Navigation Offshore Oil Pipelines Pod Propulsion Port Authority Ship Simulators Shipbuilding / Vessel Construction Sonar
rss | archive | history | articles | privacy | 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: 0.0884 sec (11 req/sec)