AN426 at a glance
Where to buy
Current standard: MS20426. AN426 is now controlled by MS20426 (MS20426 Rev. L, note 2). The part numbers do not change: AN426AD2-2 is still the number on drawings, IPCs and bags, and it is the same part. Order it by that number; the current document is MS20426.
Specification
| Item | Value |
|---|---|
| Current standard | MS20426 (part numbers unchanged) |
| Type | Solid rivet, 100° countersunk head |
| Material | As MS20426 for the alloy code |
| Status | Legacy AN designation. Use MS20426 (like dash numbers are interchangeable), itself cancelled and superseded by NASM20426 (Notice 1, 18 Aug 1998). |
Dimensions by size
| Dimension, in | 1/16 | 3/32 | 1/8 | 5/32 | 3/16 | 7/32 | 1/4 | 5/16 | 3/8 |
|---|---|---|---|---|---|---|---|---|---|
| D — Shank diameter (+.003 / -.001) | .062 | .094 | .125 | .156 | .187 | .219 | .250 | .312 | .375 |
| A — Head diameter (± .004, to theoretical sharp corners) | .114 | .179 | .225 | .286 | .353 | .415 | .476 | .564 | .694 |
| B — Head height (reference) | .022 | .036 | .042 | .055 | .070 | .083 | .095 | .106 | .134 |
| C — Approx. material for full shop head | .094 | .141 | .188 | .234 | .281 | .328 | .375 | .469 | .562 |
| E — Land height (see drawing) | .004 ± .002 | .004 ± .002 | .005 ± .002 | .005 ± .002 | .006 ± .003 | .006 ± .003 | .008 ± .003 | .010 ± .004 | .010 ± .004 |
| S — End chamfer | .016 | .023 | .031 | .039 | .047 | .054 | .062 | .078 | .094 |
| T — End radius | .019 | .029 | .039 | .049 | .059 | .069 | .078 | .098 | .117 |
Dimensions of MS20426 Rev. L, which states that rivets of like dash numbers are universally, functionally and dimensionally interchangeable with AN426.
Part numbers
Dash numbers of MS20426 Rev. L, shown under the AN426 number. Numbers built on the dash; length and alloy rules are those of MS20426.
1/169 part numbers
| Part no. | MS20426 number | Length, in |
|---|---|---|
| AN426AD2-2 | MS20426AD2-2 | .125 |
| AN426AD2-3 | MS20426AD2-3 | .1875 |
| AN426AD2-4 | MS20426AD2-4 | .250 |
| AN426AD2-5 | MS20426AD2-5 | .3125 |
| AN426AD2-6 | MS20426AD2-6 | .375 |
| AN426AD2-7 | MS20426AD2-7 | .4375 |
| AN426AD2-8 | MS20426AD2-8 | .500 |
| AN426AD2-9 | MS20426AD2-9 | .5625 |
| AN426AD2-10 | MS20426AD2-10 | .625 |
3/3214 part numbers
| Part no. | MS20426 number | Length, in |
|---|---|---|
| AN426AD3-2 | MS20426AD3-2 | .125 |
| AN426AD3-3 | MS20426AD3-3 | .1875 |
| AN426AD3-4 | MS20426AD3-4 | .250 |
| AN426AD3-5 | MS20426AD3-5 | .3125 |
| AN426AD3-6 | MS20426AD3-6 | .375 |
| AN426AD3-7 | MS20426AD3-7 | .4375 |
| AN426AD3-8 | MS20426AD3-8 | .500 |
| AN426AD3-9 | MS20426AD3-9 | .5625 |
| AN426AD3-10 | MS20426AD3-10 | .625 |
| AN426AD3-12 | MS20426AD3-12 | .750 |
| AN426AD3-14 | MS20426AD3-14 | .875 |
| AN426AD3-16 | MS20426AD3-16 | 1.000 |
| AN426AD3-20 | MS20426AD3-20 | 1.250 |
| AN426AD3-32 | MS20426AD3-32 | 2.000 |
1/817 part numbers
| Part no. | MS20426 number | Length, in |
|---|---|---|
| AN426AD4-3 | MS20426AD4-3 | .1875 |
| AN426AD4-4 | MS20426AD4-4 | .250 |
| AN426AD4-5 | MS20426AD4-5 | .3125 |
| AN426AD4-6 | MS20426AD4-6 | .375 |
| AN426AD4-7 | MS20426AD4-7 | .4375 |
| AN426AD4-8 | MS20426AD4-8 | .500 |
| AN426AD4-9 | MS20426AD4-9 | .5625 |
| AN426AD4-10 | MS20426AD4-10 | .625 |
| AN426AD4-12 | MS20426AD4-12 | .750 |
| AN426AD4-13 | MS20426AD4-13 | .8125 |
| AN426AD4-14 | MS20426AD4-14 | .875 |
| AN426AD4-16 | MS20426AD4-16 | 1.000 |
| AN426AD4-18 | MS20426AD4-18 | 1.125 |
| AN426AD4-20 | MS20426AD4-20 | 1.250 |
| AN426AD4-22 | MS20426AD4-22 | 1.375 |
| AN426AD4-24 | MS20426AD4-24 | 1.500 |
| AN426AD4-28 | MS20426AD4-28 | 1.750 |
5/3217 part numbers
| Part no. | MS20426 number | Length, in |
|---|---|---|
| AN426AD5-4 | MS20426AD5-4 | .250 |
| AN426AD5-5 | MS20426AD5-5 | .3125 |
| AN426AD5-6 | MS20426AD5-6 | .375 |
| AN426AD5-7 | MS20426AD5-7 | .4375 |
| AN426AD5-8 | MS20426AD5-8 | .500 |
| AN426AD5-9 | MS20426AD5-9 | .5625 |
| AN426AD5-10 | MS20426AD5-10 | .625 |
| AN426AD5-11 | MS20426AD5-11 | .6875 |
| AN426AD5-12 | MS20426AD5-12 | .750 |
| AN426AD5-14 | MS20426AD5-14 | .875 |
| AN426AD5-16 | MS20426AD5-16 | 1.000 |
| AN426AD5-18 | MS20426AD5-18 | 1.125 |
| AN426AD5-20 | MS20426AD5-20 | 1.250 |
| AN426AD5-22 | MS20426AD5-22 | 1.375 |
| AN426AD5-24 | MS20426AD5-24 | 1.500 |
| AN426AD5-28 | MS20426AD5-28 | 1.750 |
| AN426AD5-32 | MS20426AD5-32 | 2.000 |
3/1619 part numbers
| Part no. | MS20426 number | Length, in |
|---|---|---|
| AN426AD6-5 | MS20426AD6-5 | .3125 |
| AN426AD6-6 | MS20426AD6-6 | .375 |
| AN426AD6-7 | MS20426AD6-7 | .4375 |
| AN426AD6-8 | MS20426AD6-8 | .500 |
| AN426AD6-9 | MS20426AD6-9 | .5625 |
| AN426AD6-10 | MS20426AD6-10 | .625 |
| AN426AD6-11 | MS20426AD6-11 | .6875 |
| AN426AD6-12 | MS20426AD6-12 | .750 |
| AN426AD6-14 | MS20426AD6-14 | .875 |
| AN426AD6-15 | MS20426AD6-15 | .9375 |
| AN426AD6-16 | MS20426AD6-16 | 1.000 |
| AN426AD6-18 | MS20426AD6-18 | 1.125 |
| AN426AD6-20 | MS20426AD6-20 | 1.250 |
| AN426AD6-22 | MS20426AD6-22 | 1.375 |
| AN426AD6-24 | MS20426AD6-24 | 1.500 |
| AN426AD6-28 | MS20426AD6-28 | 1.750 |
| AN426AD6-32 | MS20426AD6-32 | 2.000 |
| AN426AD6-40 | MS20426AD6-40 | 2.500 |
| AN426AD6-48 | MS20426AD6-48 | 3.000 |
7/3216 part numbers
| Part no. | MS20426 number | Length, in |
|---|---|---|
| AN426AD7-6 | MS20426AD7-6 | .375 |
| AN426AD7-7 | MS20426AD7-7 | .4375 |
| AN426AD7-8 | MS20426AD7-8 | .500 |
| AN426AD7-9 | MS20426AD7-9 | .5625 |
| AN426AD7-10 | MS20426AD7-10 | .625 |
| AN426AD7-12 | MS20426AD7-12 | .750 |
| AN426AD7-14 | MS20426AD7-14 | .875 |
| AN426AD7-16 | MS20426AD7-16 | 1.000 |
| AN426AD7-18 | MS20426AD7-18 | 1.125 |
| AN426AD7-20 | MS20426AD7-20 | 1.250 |
| AN426AD7-22 | MS20426AD7-22 | 1.375 |
| AN426AD7-24 | MS20426AD7-24 | 1.500 |
| AN426AD7-28 | MS20426AD7-28 | 1.750 |
| AN426AD7-32 | MS20426AD7-32 | 2.000 |
| AN426AD7-40 | MS20426AD7-40 | 2.500 |
| AN426AD7-48 | MS20426AD7-48 | 3.000 |
1/417 part numbers
| Part no. | MS20426 number | Length, in |
|---|---|---|
| AN426AD8-6 | MS20426AD8-6 | .375 |
| AN426AD8-7 | MS20426AD8-7 | .4375 |
| AN426AD8-8 | MS20426AD8-8 | .500 |
| AN426AD8-9 | MS20426AD8-9 | .5625 |
| AN426AD8-10 | MS20426AD8-10 | .625 |
| AN426AD8-12 | MS20426AD8-12 | .750 |
| AN426AD8-14 | MS20426AD8-14 | .875 |
| AN426AD8-16 | MS20426AD8-16 | 1.000 |
| AN426AD8-18 | MS20426AD8-18 | 1.125 |
| AN426AD8-20 | MS20426AD8-20 | 1.250 |
| AN426AD8-22 | MS20426AD8-22 | 1.375 |
| AN426AD8-24 | MS20426AD8-24 | 1.500 |
| AN426AD8-28 | MS20426AD8-28 | 1.750 |
| AN426AD8-32 | MS20426AD8-32 | 2.000 |
| AN426AD8-34 | MS20426AD8-34 | 2.125 |
| AN426AD8-40 | MS20426AD8-40 | 2.500 |
| AN426AD8-48 | MS20426AD8-48 | 3.000 |
5/1615 part numbers
| Part no. | MS20426 number | Length, in |
|---|---|---|
| AN426AD10-7 | MS20426AD10-7 | .4375 |
| AN426AD10-8 | MS20426AD10-8 | .500 |
| AN426AD10-9 | MS20426AD10-9 | .5625 |
| AN426AD10-10 | MS20426AD10-10 | .625 |
| AN426AD10-12 | MS20426AD10-12 | .750 |
| AN426AD10-14 | MS20426AD10-14 | .875 |
| AN426AD10-16 | MS20426AD10-16 | 1.000 |
| AN426AD10-18 | MS20426AD10-18 | 1.125 |
| AN426AD10-20 | MS20426AD10-20 | 1.250 |
| AN426AD10-22 | MS20426AD10-22 | 1.375 |
| AN426AD10-24 | MS20426AD10-24 | 1.500 |
| AN426AD10-28 | MS20426AD10-28 | 1.750 |
| AN426AD10-32 | MS20426AD10-32 | 2.000 |
| AN426AD10-40 | MS20426AD10-40 | 2.500 |
| AN426AD10-48 | MS20426AD10-48 | 3.000 |
3/814 part numbers
| Part no. | MS20426 number | Length, in |
|---|---|---|
| AN426AD12-8 | MS20426AD12-8 | .500 |
| AN426AD12-9 | MS20426AD12-9 | .5625 |
| AN426AD12-10 | MS20426AD12-10 | .625 |
| AN426AD12-12 | MS20426AD12-12 | .750 |
| AN426AD12-14 | MS20426AD12-14 | .875 |
| AN426AD12-16 | MS20426AD12-16 | 1.000 |
| AN426AD12-18 | MS20426AD12-18 | 1.125 |
| AN426AD12-20 | MS20426AD12-20 | 1.250 |
| AN426AD12-22 | MS20426AD12-22 | 1.375 |
| AN426AD12-24 | MS20426AD12-24 | 1.500 |
| AN426AD12-28 | MS20426AD12-28 | 1.750 |
| AN426AD12-32 | MS20426AD12-32 | 2.000 |
| AN426AD12-40 | MS20426AD12-40 | 2.500 |
| AN426AD12-48 | MS20426AD12-48 | 3.000 |
Part number
What each code means
| Part | Meaning |
|---|---|
| Format | AN426<material><dash> |
| A | Material: 1100-F aluminum (head plain) |
| AD | Material: 2117-T4 aluminum alloy (dimpled head) |
| B | Material: 5056-H32 aluminum alloy (raised cross) |
| D | Material: 2017-T4 aluminum alloy, inactive for new design (raised teat) |
| DD | Material: 2024-T4 aluminum alloy, inactive for new design (raised double dash) |
| Example | AN426AD4-5 — Same as MS20426AD4-5 |
Notes from the standard
- Use MS20426 for new orders. Older drawings and IPCs keep the AN426 number.
Where to buy
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Distributors coming soon.
Sources
- MS20426 Rev. L, 14 Sep 1993 — Rivet, Solid, Countersunk 100°, Precision Head, Aluminum and Titanium Columbium Alloy — dimensions, part numbers and notes. Public domain, distribution unlimited. Notices: Notice 1 (18 Aug 1998): MS20426L cancelled and superseded by NASM20426; part numbers identical.
Educational reference only. not approved data. Always consult the applicable SRM, AMM, or AC 43.13-1B and your certifying authority.