
bisco Expands ESNA Lock Nut Online Catalog
bisco industries is excited to announce that we have expanded our online catalog of ESNA lock nuts. bisco’s expanded ESNA catalog includes data such as material, finish, thread size, and other relevant dimensions to facilitate easy design-in and confident purchasing.

bisco industries Relocates Dallas Distribution Center
bisco industries’ Dallas, TX facility has relocated to 4400 West Walnut Hill Lane, Suite 130 Irving, TX 75038. Effective July 24, 2017, the move affects both bisco’s distribution center and sales office for the Dallas area. The new space increases the warehouse square footage by over 4000 square feet, providing room for bisco’s growing inventory.
Product Spotlight: MS21043-3 Military Standard Lock Nuts
MS21043-3 Self-Locking Hex Nuts
bisco now stocks MS21043-3 lock nuts (locknuts) along with many other lock nuts in the MS21043 series. bisco’s MS21043-3 corrosion resistant steel hex lock nuts meet military standard (MS) NASM21043 and fall under National Stocking Number (NSN) 5310-00-844-3302. MS21043-3 lock nuts provide secure fastening that combats loosening from vibration and torque making them ideal for high-stress applications such as aircraft and military equipment.
MS21043-3 Features
Product Spotlight: MS21060L3 Military Standard Nutplates
MS21060L3 Self-Locking, Floating Nutplates
bisco industries is proud to supply MS21060L3 nutplates as well as the entire line of MS21060 series nutplates. bisco’s MS21060L3 self-locking floating nutplates meet military standard (MS), NASM21060, and fall under National Stocking Number (NSN), 5310-00-779-6625. MS21060L3 floating nutplates are widely used in aerospace and defense applications to allow secure installation of captive nuts behind panels.
MS21060L3 Features

Introducing StressNut Rivetless Nuplates from NAFCO USA
In the world of aerospace fasteners NAFCO USA has built a reputation for quality, affordable, and innovative products. NAFCO USA’s latest product, stressnut rivetless nutplates, are no exception.

bisco Earns Raytheon Supplier Excellence Award
bisco industries has been recognized with a four star 2015 Operational Excellence Supplier Award from Raytheon’s Integrated Defense Systems. The award is in recognition of bisco’s exemplary performance in helping Raytheon deliver mission assurance to their customers.
Raytheon’s Integrated Defense Systems business instituted the annual Supplier Excellence Awards program to recognize suppliers who have provided outstanding service and partnership in exceeding customer requirements. Award candidates are judged on certain criteria, including overall quality, on-time delivery and demonstrated commitment to continuous improvement. bisco industries was one of 82 companies recognized by Raytheon’s Integrated Defense Systems business for 4-Star honors.
Learn About Partnering with bisco
bisco industries is proud to serve leading manufacturers in the aerospace and defense industries. To learn about how you can optimize your supply chain by partnering with bisco contact us today!
Product Spotlight: Acme Industrial MS51831 Keylocking Inserts
MS51831 Heavy Duty Key Locked Threaded Inserts
MS51831 specification inserts are heavy duty keylocking inserts made from corrosion resistant steel (stainless steel). MS51831 inserts can be easily installed using standard drills and taps and require no tangs to be removed. Like other threaded inserts, MS51831 series inserts are used to repair damaged threads or to improve the thread strength of the parent material. Common applications for MS51831 key locked inserts include aircraft, motor vehicles, communication equipment, and electronic and industrial enclosures.
Acme Industrial – MS51831 Insert Manufacturer
Acme Industrial manufacturers the complete series of MS51831 inserts including both non-locking and self-locking versions. Although Acme manufacturers the MS51831 inserts under their own part numbers, the inserts are fully certified to the MS51831 spec (see the cross reference table below). In addition, Acme’s inserts are manufactured in the USA and are always DFAR compliant. Stock info, pricing, and product information are available from authorized Acme Industrial distributor, bisco industries. Visit biscoind.com or click on a part number in the table below to learn more.
Acme Industrial MS51831 Insert Cross Equivalents
MS51831 Insert Part Number |
Acme Industrial Part Number |
MS51831-101 | 217-076301 |
MS51831-101L | 217-077301 |
MS51831-102 | 217-076302 |
MS51831-102L | 217-077302 |
MS51831-103 | 217-076303 |
MS51831-103L | 217-077303 |
MS51831-104 | 217-076304 |
MS51831-104L | 217-077304 |
MS51831-105 | 217-076305 |
MS51831-105L | 217-077305 |
MS51831-106 | 217-076306 |
MS51831-106L | 217-077306 |
MS51831-107 | 217-076307 |
MS51831-107L | 217-077307 |
MS51831-108 | 217-076308 |
MS51831-108L | 217-077308 |
MS51831-109 | 217-076309 |
MS51831-109L | 217-077309 |
MS51831-110 | 217-076310 |
MS51831-110L | 217-077310 |
MS51831-111 | 217-076311 |
MS51831-111L | 217-077311 |
MS51831-201 | 217-076501 |
MS51831-201L | 217-077501 |
MS51831-202 | 217-076502 |
MS51831-202L | 217-077502 |
MS51831-203 | 217-076503 |
MS51831-203L | 217-077303 |
MS51831-204 | 217-076504 |
MS51831-204L | 217-077504 |
MS51831-205 | 217-076505 |
MS51831-205L | 217-077505 |
MS51831-206 | 217-076506 |
MS51831-206L | 217-077506 |
MS51831-207 | 217-076507 |
MS51831-207L | 217-077507 |
MS51831-208 | 217-076508 |
MS51831-208L | 217-077508 |
MS51831-209 | 217-076509 |
MS51831-209L | 217-077509 |
MS51831-210 | 217-076510 |
MS51831-210L | 217-077510 |
MS51831-211 | 217-076511 |
MS51831-211L | 217-077511 |
Industry News Wrap-Up January 11-15, 2016
Year-Over- Year Sales for Smart Home Devices Predicted to Double
ABI Research recently released a report revealing that sales for smart home devices are expected to double by 2017. Smart home devices include in-home security systems, phone/internet integration, thermostats, and even smart clocks.
Thanks to several consecutive years of building a strong foundation for this market, wide adaptation in the industry is expected to cause impressive growth in sales. Some of the top vendors in the smart home industry include AT&T, Vivint, and ADT. Click here to learn more.
Aerospace Safety Advisory Panel Releases Annual Report for NASA
This past week, the Aerospace Space Advisory Panel (ASAP) released its 2015 annual report reviewing NASA’s overall safety performance. The report touches on NASA’s accomplishments in 2015, current funding analysis, as well as any concerns over missions in 2015.
According to the 2015 report, ASAP believes that the healthy and steady competition between Boeing and Space Exploration Technologies Corporation (SpaceX) plays an integral part in the advancement and improvement of safety technology in NASA programs. To read through the 42 page report click here.
bisco industries is proud to serve clients in the electronics and aerospace industries. To learn more about bisco’s products and services visit biscoind.com.

What is a Locknut?
A locknut is a nut specifically designed to stay fastened despite vibration or other environmental stresses. In order to stay locked in placed locknuts utilize surfaces that increase friction and reduce the possibility of the nut coming loose. The most common way to increase the surface friction is to add a nylon patch to the locknut’s threads. In some cases friction is also increased by fabricating locknuts with a slightly oval shape. Locknuts come in in various types including jam nuts, speed nuts, flex-top locknuts, distorted-thread locknuts, and castle nuts.
Locknut Applications
Needless to say, high quality and reliable locknuts are integral to many applications. Some of the most popular applications for locknuts are aircraft, military equipment, and machinery. These applications typically experience high stress and it is critical for safety and performance that components stay securely fastened.
Locknut Suppliers
Popular locknut brands include SPS Flexloc, MacLean ESNA, Micro Plastics, and Republic (Alcoa). Thanks to companies like Nylok standard nuts can also be converted into locknuts by adding a nylon patch. For more detailed locknut specifications and technical info view MacLean ESNA’s Catalog. Ready to buy? bisco stocks a wide range of locknuts for military, aerospace, and industrial applications. Search biscoind.com or contact us for price and availability.

Industry News Wrap Up: December 14-18, 2015
Here’s a look at a couple of the top stores in the aerospace, semiconductor, and consumer electronics industries this past week.
Vehicle Charging Expected to Boost Semiconductor Industry
IHS Technology reported that semiconductor industry revenues attributed to vehicle charging stations reached $44 million in 2014 and are expected to reach $233 million by 2019. The push towards sustainable technology will continue to present opportunities to supply chain members in the semiconductor and electronics industries in the coming years.
Apple Names New COO
On Thursday, Apple announced that company veteran Jeff Williams will become the next COO. Williams joined Apple in 1998 as head of worldwide procurement and in 2004 he was named VP of Operations. Williams played a key role in Apple’s entry into the mobile phone market with the launch of iPhone® and Apple’s first wearable product, Apple Watch®.
China Southern Airlines Commits to Purchase 100+ Boeing Planes
China Southern Airlines has committed to purchase 30 Boeing 737NGs and 50 737 MAXs, valued at $8.4 billion. Its Xiamen Airlines subsidiary will also be purchasing 30 737 MAXs. According to China Southern, Boeing will take back thirteen 757s and three 737-300s as part of the agreement.
bisco industries is proud to serve clients in the aerospace, semiconductor, and electronics industries. Stay tuned to bisco’s blog each week for updates on the latest industry news.