 General Ordering Info
Alumina Tubes & Rods
99.8% Alumina Rods
Alumina Plates & Disks
Bolts, Nuts & Washers
 Standoff Ceramic Insulators
Fishspine Beads
Machinable Ceramics
Standard Standoff Ceramic Insulators
Unglazed Alumina
STC Part #
|
Glazed Steatite
STC Part #
|
Glazed Steatite
MIL Ref.
Part #
|
Diameter
|
Thread
Size
|
Length
|
Minimum Thread
Depth
|
|
n/a
|
50303
|
n/a
|
.375"
|
6-32
|
.375"
|
1
/
8
|
|
52304
|
50304
|
NL523W01-004
|
.500"
|
5
/
32
|
|
52305
|
50305
|
NL523W01-005
|
.625"
|
3/16
|
|
52306
|
50306
|
NL523W01-006
|
.750"
|
1/4
|
|
52308
|
50308
|
NL523W01-008
|
1.000"
|
3
/
8
|
|
52310
|
50310
|
NL523W01-010
|
1.250"
|
3
/
8
|
|
52312
|
50312
|
NL523W01-012
|
1.500"
|
3
/
8
|
|
52316
|
50316
|
NL523W01-016
|
2.000"
|
3
/
8
|
|
52405
|
50405
|
NL523W02-005
|
.500"
|
8-32
|
.625"
|
3
/
16
|
|
52406
|
50406
|
NL523W02-006
|
.750"
|
1/4
|
|
52408
|
50408
|
NL523W02-008
|
1.000"
|
3
/
8
|
|
52410
|
50410
|
NL523W02-010
|
1.250"
|
3
/
8
|
|
52412
|
50412
|
NL523W02-012
|
1.500"
|
3
/
8
|
|
52416
|
50416
|
NL523W02-016
|
2.000"
|
3
/
8
|
|
52420
|
50420
|
NL523W02-020
|
2.500"
|
3
/
8
|
|
52424
|
50424
|
NL523W02-024
|
3.000"
|
3
/
8
|
|
52608
|
50608
|
NL523W03-008
|
.750"
|
10-32
|
1.000"
|
3
/
8
|
|
52610
|
50610
|
NL523W03-010
|
1.250"
|
3
/
8
|
|
52612
|
50612
|
NL523W03-012
|
1.500"
|
3
/
8
|
|
52616
|
50616
|
NL523W03-016
|
2.000"
|
3
/
8
|
|
52620
|
50620
|
NL523W03-020
|
2.500"
|
3
/
8
|
|
52624
|
50624
|
NL523W03-024
|
3.000"
|
3
/
8
|
|
52632
|
50632
|
NL523W03-032
|
4.000"
|
3
/
8
|
|
52810
|
50810
|
NL523W04-010
|
1.000"
|
1/4-20
|
1.250"
|
7
/
16
|
|
52812
|
50812
|
NL523W04-012
|
1.500"
|
1/2
|
|
52816
|
50816
|
NL523W04-016
|
2.000"
|
5
/
8
|
|
52820
|
50820
|
NL523W04-020
|
2.500"
|
5
/
8
|
|
52824
|
50824
|
NL523W04-024
|
3.000"
|
5
/
8
|
|
52832
|
50832
|
NL523W04-032
|
4.000"
|
5
/
8
|
|
52840
|
50840
|
NL523W04-040
|
5.000"
|
5
/
8
|
|
52848
|
50848
|
NL523W04-048
|
6.000"
|
5
/
8
|
Tolerances |
| Unglazed Alumina and Glazed Steatite Diameters: |
Glazed Alumina Diameters: |
Length for all standoffs: |
.375" - .500": +/- .012"
.750": +/- .015"
1.000": +/- .020" |
Add .012" to maximum diameter size of Unglazed Alumina |
.500" - .625": +/- .010"
.750": +/- .015"
1.000": +/- .015"
1.250" — 6.000": +/- 1.5%
(rounded up to nearest .005") |
Sharp edges at the ends may be broken to prevent chipping. Thread may be countersunk a maximum of 1/16" deep to prevent chipping. .006"/ inch max camber allowance. Threads must accept a Class 1 metal screw to the above minimum thread depth. Threads will be perpendicular within 2 degrees of ends or axis as applicable.
MIL number shown above is to be used as reference only, MILI10 obsoleted 1/99.
Superior Technical Ceramics can also manufacture custom sizes. Please contact us for pricing of our standard standoffs, and any other custom ceramic part or ceramic tube requirements you have.
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