NAS Bolts – Aerospace Bolts Interchange
Jet-Tek is a manufacturer and distributor of NAS Bolts. Blanks in all diameters available which can be completed in 2-3 weeks based on your requirement. Parts include Manufacturer and material certifications with chemical and physical test reports at no charge. Contact us at (800) 804-7876 for a free quote, or please submit a RFQ here.
NAS Bolts Series
NAS6203 – NAS6210
NAS6303 – NAS6310
NAS6603 – NAS6610
NAS6703 – NAS6710
The following charts detail material specifications, strength and temperature ratings, nominal thread lengths, and updates/interchanges of the most commonly used aerospace bolt series.
NAS Bolts – Hex Head
125,000 Dsi tensile / 75,000 Dsi shear
AN3: alloy steel, 450°F
AN3C: stainless steel, 450°F
160,000 Dsi tensile/ 95,000 psi shear
NAS1103: Alloy steel, 450°F NAS6703: A286 stainless, 1200°F
NAS6203: Alloy steel, 450°F NAS653: Titanium alloy, 500°F
NAS1303: Alloy steel, 450°F NAS673: Titanium alloy, 500°F
NAS6603: Alloy steel, 450°F NAS6403: Titanium alloy, 500°F
NAS6303: A286 stainless, 1200°F NAS6803: Titanium alloy, 500°F
Supersedence Commonly Accepted Interchanges
NAS1103 to NAS6203 NAS1103, NAS6203
NAS1303 to NAS6603 NAS1303, NAS6603
NAS Bolts – Internal Wrenching Head – 12 Point Head
160,000 psi tensile / 96,000 psi shear 180,000 psi tensile / 108,000 psi shear
NAS144: alloy steel, 450°F (internal wrenching) NAS624: alloy steel, 450°F (12 point)
MS20004: alloy steel, 450°F (internal wrenching) MS21250: alloy steel, 450°F (12 point)
Supersedence Commonly Accepted Interchanges
NAS144 to MS20004 NAS624 and MS21250
NAS144 and MS20004
Thread Sizes and Nominal Thread Lengths Chart
Note: “x” or “xx” represents diameter number; all dimensions are in inches
|
Dia. Number |
Thread Size |
Alloy Steel |
A286 Stainless |
6AL4v Titanium Alloy |
Alloy Steel |
||||||||||
|
11xx |
62xx |
13xx |
66xx |
63xx |
67xx |
65xx |
67xx |
64xx |
68xx |
ANx |
MS2000x |
MS21250 |
NAS62x |
||
|
3 |
.190-32 |
.276 |
.323 |
.338 |
.345 |
.323 |
.345 |
.276 |
.338 |
.323 |
.345 |
.406 |
N/A |
.420 |
N/A |
|
4 |
.250-28 |
.316 |
.370 |
.425 |
.425 |
.370 |
.425 |
.316 |
.425 |
.370 |
.425 |
.469 |
.475 |
.492 |
.485 |
|
5 |
.3125-24 |
.375 |
.438 |
.469 |
.469 |
.438 |
.469 |
.375 |
.469 |
.438 |
.469 |
.531 |
.537 |
.579 |
.572 |
|
6 |
.375-24 |
.391 |
.454 |
.578 |
.578 |
.454 |
.578 |
.391 |
.578 |
.454 |
.578 |
.641 |
.662 |
.625 |
.619 |
|
7 |
.4375-20 |
.453 |
.528 |
.594 |
.694 |
.528 |
.694 |
.453 |
.594 |
.528 |
.694 |
.656 |
.787 |
.721 |
.694 |
|
8 |
.500-20 |
.453 |
.528 |
.735 |
.735 |
.528 |
.735 |
.453 |
.735 |
.528 |
.735 |
.781 |
.787 |
.768 |
.741 |
|
9 |
.563-18 |
.511 |
.594 |
.840 |
.840 |
.594 |
.840 |
– |
– |
.594 |
.840 |
.906 |
.850 |
.852 |
.826 |
|
10 |
.625-18 |
.543 |
.626 |
.902 |
.902 |
.626 |
.902 |
– |
– |
.626 |
.902 |
.953 |
.912 |
.899 |
.873 |
|
12 |
.750-16 |
.572 |
.666 |
1.041 |
1.041 |
.666 |
1.041 |
– |
– |
.666 |
1.041 |
1.093 |
1.037 |
1.036 |
.993 |