Glass Bead Sizes PDF Print E-mail

Please consult AFI for exact specifications.

U. S.
STANDARD
SCREEN SIZE
MIL. SPEC.
(G-9954A)
MIL. SPEC.
(S-13165B)
COMMON BRANDS
SAE
(J-1173)
BEAD SIZE RANGE
(DIA., INCHES)
FLEX-O-LITE
(BLAST-O-LITE)
POTTERS
(BALLOTINI)
CATAPHOTE
(MICROBEAD)
ZERO
12-14
No. 1
BT 1
1
801-201
.0661-.0555
14-20
No. 2
BT 2
2
801-202
.0555-.0331
20-30
No. 3
331
BT 3
3 or A
MS-XGX
801-203
GB-70
.0331-.0234
20-80
AA
.0331-.0070
25-35
280
MS-XPX
.0283-.0197
25-45
AAA
MS-XP
.0283-.0171
30-40
No. 4
232
BT 4
4 or B
801-204
GB-50
.0234-.0165
35-45
197
.0197-.0171
35-60
MS-P
.0197-.0098
40-50
No. 5
165
BT 5
5
801-205
GB-35
.0165-.0117
40-60
BOL 21
C
.0165-.0098
40-70
MS-XHX
.0165-.0083
45-60
138
.0171-.0098
50-70
No. 6
117
BT 6
6 or D
801-206
GB-25
.0117-.0083
50-80
BOL 23
AB
MS-XH
.0117-.0070
60-80
No. 7
98
BT 7
7 or E
801-207
GB-20
.0098-.0070
60-100
BOL 24
MS-H
.0098-.0059
60-120
AC
.0098-.0049
70-100
No. 8
83
BT 8
8 or F
801-208
GB-18
.0083-.0059
70-140
BOL 25
AD
MS-MH
.0083-.0041
80-120
No. 9
70
BT 9
9 or G
801-209
GB-15
.0070-.0049
100-140
H
.0059-.0041
100-170
No. 10
BT 10
10 or AE
801-210
.0059-.0035
100-200
BOL 26
MS-M
.0059-.0029
120-170
AG
.0049-.0035
120-200
No. 11
BT 11
11
801-211
.0049-.0029
140-200
J
.0041-.0029
140-230
No. 12
BT 12
12
801-212
.0041-.0025
140-270
BOL 27
MS-ML
.0041-.0021
170-230
.0035-.0025
170-325
No. 13
BT 13
13 or AH
MS-L
801-213
.0035-.0017
170 and Finer
AL
.0035 and Finer
200-270
N
.0029-.0021
200-325
BOL 29
.0029-.0017
230-325
24
O
.0025-.0017
270-400
P
.0021-.0015
270 and Finer
AI
MS-XL
.0021 and Finer
325 and Finer
BOL 30
AQ
MS-XLX
801-214
.0017 and Finer
400 and Finer
AS
.0015 and Finer

Bold Print indicates the most commonly used glass bead sizes. Mil.Spec.#8 is the most commonly used bead size.

 
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