Custom Electropolished Springs - 17-7PH Stainless Material

These custom electropolished springs are manufactured domestically for our aerospace customer using 17-7PH material per AMS 5678.  .100" +/- .001" wire diameter is used with an overall free length of 1.355".  Outside diameter is 1.069 +/- .010 and the inside diameter is set at .0869".  Parts had to be heat treated to CH900 per AMS 2759, passivated per AMS 2700 method 1 or method 2, electropolished per PPS 300 Type III, and go through magnetic particle inspection per ASTM E1444.

Custom Grade 5 Hex Cap Screws - 5/16-24 X .875 With Black Oxide Finish

We have supplied these custom grade 5 hex cap screws to our customer for well over 10 years.  The parts are manufactured domestically, with production runs typically covering 50,000 pieces at a time.  The shoulder is critical on these parts, set at .312" in diameter +/- .005" and at 1/4" in length.  Head dimensions slightly off the standard for this size and the finish is black oxide and light oil.  Together with a number of other parts we supply these custom hex cap screws through revolving annual blanket purchase orders that split up the annual usage to match our customer's seasonality.

Custom V Bolts - 5/8 Diameter In A36 Material With Yellow Zinc Finish

These are custom V bolts we had manufactured domestically for our robotics customer.  A36 steel material was used with zinc yellow and bake finish process.  5/8-11 thread was incorporated on both legs, at 2 inches in length.  Center to center inside width was set at 4-1/2 inches, with the inside length set at 5.88 inches.  The inside angle at the V was set to 90 degrees.

Custom .250 Wire Compression Springs - 17-7 Stainless Steel Material

We supplied 100 pieces of these 2.87" free length custom .250 wire compression springs to our aerospace customer with a first article inspection report (FAIR), MIL-STD-6866 dye penetrant inspection report (Type 1, Method A, Sensitivity Level 3), heat treat certs, and a certificate of conformance.  The outside diameter is 1.218 +/- .010" and the inside diameter is .718".  Heat treat was done to condition CH900 per MIL-H-6875.  Production was done domestically with a rush option to help our customer get out of a timing jam.

Custom Large Square Washers - 3" X 3" In A36 Material

A washer the size of these custom large square washers is typically destined for construction applications so we were surprised to get a request to get them made by our aerospace customer.  200 pieces were manufactured domestically measuring 3" by 3" by .5" thickness, using A36 steel material with zinc plating per ASTM B633, SC2, Type 1.  The inside opening had to be machined to a diameter of 1.06" +/- .01".  All sharp edges had to be broken to .010-.030".  Certifications for the material characteristics and the zinc plating was provided with the parts.

Custom Large Socket Cap Screws For Aerospace Applications - 1-1/4 -7 X 9 Inches In A574 Material With Black Oxide Finish

We provided 100 of these custom large socket cap screws to our aerospace customer together with custom oversize washers.  A574 material was used for these parts, with minimum tensile strength of 170,000 psi, minimum yield strength of 154,000 psi, and rockwell hardness between 37 and 45.  1-1/4 -7 class 3A thread was required and the overall length underneath the head was 9 inches.  MIL-DTL-13924 black oxide finish was done to complete the parts.  All certifications requested by our customer were provided with the parts.  Per their request the shank and threads of each socket screw had to be protected during handling and shipping.

Custom Grey Painted Rivets - 1/8 X .375 Stainless Dome Head Rivets Painted Grey

We supplied these custom grey painted rivets to our customer with 4 other similar grey and brown color.  The customer provided us paint swatches for each color to match and after our initial samples were approved we ran the stainless steel rivets through a strip process prior to painting to eliminate any risk of flaking or cracking of the paint.  The rivets themselves are fully 18-8 stainless steel, measuring 1/8 X .375", with a grip range of .188" to .250".  Lead time for a similar project is typically between 3 and 4 weeks without an expedite request.

Custom Eccentric Shafts In 431 Stainless Steel Material

We supply our customer these custom eccentric shafts on a revolving blanket purchase order basis, typically at 350 pieces required annually.  431 material per AMS 5628 material was used to manufacture these tricky parts, with heat treat, dicronite finish per AMS 2530 not to exceed .0002" in thickness.  Dimensional tolerances were very stringent on these parts, at +/- .0002" on many of the cross section diameters along the shaft.  The hex socket drive was broached with engagement to be at .175" minimum and overall drill depth not to exceed .200".

Custom 17-7PH Compression Springs - 0.125 X 1.016 Compression Springs For Aerospace Applications

These custom 17-7PH compression springs were manufactured domestically and are intended for aerospace manufacturing applications.  17-7 PH Stainless steel material per AMS 5678 was used and the parts were passivated per MIL-S-5002.  Heat treat was specificed per MIL-H-6875 and we also had to run the springs 100% through penetrant inspection in accordinace with MIL-STD-6866 Type I, Method A, Sensitivity Level 2.  Outside diameter measured .800 inches, inside diameter at .53 inches, and 3-1/2 total coils.  First Article Inspection Report (FAIR) was provided with the first batch of these compression springs per customer requirements.

Custom Machined Hex Nuts - Oversize With 3/4-10 and 5/8-11 Internal Thread

These oversize custom machined hex nuts were made domestically using plain low carbon steel material, to be used in a custom u-bolt/plate combination after all 3 items went through a zinc plating process.  Width across the flats was set at 2" for both the 3/4-10 and the 5/8-11 internal thread versions, and the height was at 3/4".  Parts were completed within 2 weeks of order, with an additional 1-2 weeks for zinc plating with the other two items.  Our internal part number for this machined hex nut is NF-075032-B.