A-A-52420 Plug, ExpansionThis commercial item description (CID) covers the requirements of a curved, circular steel disc expansion plug used for closing holes in castings and other similar openings. The expansion plug is referred to herein as "plug".

Pages 1 - 2 - 3 - 4

CID PIN

SUPERSEDED MS PIN

NOMINAL DIAMETER

OUTSIDE DIAMETER ‘A’

THICKNESS ‘B’ ± .005

RADIUS ‘C’

± 1/64

ANGLE ‘D’ ± 1°

MAX 1/

MIN

A52420-01

35648-01

1/4

.252

.248

0.32

7/32

32

A52420-02

35648-02

3/8

.377

.372

0.65

13/32

25

A52420-03

35648-03

1/2

.502

.498

0.65

17/32

25

A52420-04

35648-04

5/8

.628

.622

0.65

¾

23

A52420-05

35648-05

3/4

.753

.747

0.65

15/16

23

A52420-06

35648-06

7/8

.878

.872

0.83

1-3/32

23

A52420-07

35648-07

1

1.003

.997

0.83

1-1/8

24

A52420-08

35648-08

1-1/8

1.128

1.122

0.83

1-3/8

24

A52420-09

35648-09

1-1/4

1.253

1.247

0.83

1-5/8

21

A52420-10

35648-10

1-3/8

1.380

1.370

0.83

1-13/16

21

A52420-11

35648-11

1-1/2

1.505

1.495

0.83

2-1/8

21

A52420-12

35648-12

1-5/8

1.630

1.620

0.83

2-3/8

21

A52420-13

35648-13

1-3/4

1.755

1.745

0.83

2-11/16

19

A52420-14

35648-14

1-7/8

1.880

1.870

0.83

2-7/8

19

A52420-15

35648-15

2

2.005

1.995

0.83

3-3/16

19

A52420-16

35648-16

2-1/4

2.255

2.245

0.83

3-9/16

19

A52420-17

35648-17

2-1/2

2.505

2.495

0.83

4-5/32

17

A52420-18

35648-18

2-3/4

2.755

2.745

0.83

4-1/2

17

A52420-19

35648-19

3

3.005

2.995

0.83

5

17

A52420-20

35648-20

3-1/4

3.255

3.245

.134

5-1/2

17

A52420-21

35648-21

3-1/2

3.505

3.495

.134

6

17