4155 N. 1000E (Wally Parks Dr.)
Adjacent To O'Reilly Raceway Park
Brownsburg, IN 46112
8:00 - 5:00 M-F, 8:00 - 12:00 Sat. - EST
 

Home About MPH Products Tech. Info. Contact Sale Terms
 
AN - NAS - MS
Hardware
 
   

Washer Identification 

Click Photo For More Details
AN Washer - thick
AN960-X
AN Washer - thin
AN960-XL
AN Washer - fender
AN970-X
MS - chamfered
MS20002CX
MS - plain
MS20002-X

Notes:

- See Chart below for dimensions
- Gold cad. plated
- Available in stainless steel (AN960Cx)
- See Chart below for dimensions
- Gold cad. plated
- Available in stainless steel (AN960Cx)
- Half the thickness of thick washers
- See Chart below for dimensions
- Large area washer
- Gold cad. plated
- See Chart below for dimensions
- For use with 12 point and internal wrenching NAS bolts
- Not for use with other series of bolts
- Gold cad. plated
- Hardened
- See Chart below for dimensions
- Not for use with other series of bolts
- Gold cad. plated
- Hardened

Tinnerman Finishing
NAS1169-X
Finishing - button head Finishing - flat head SAE plain USS plain
Notes:
- 1000 countersink
- Excellent reinforcement in composites
- Billet aluminum
- For use with #10  button head screw
- Anodized black
- Excellent reinforcement in composites
- Billet aluminum
- For use with #10 
flat head screw
- Anodized black
- Excellent reinforcement in composites
- See Chart below for dimensions
- Plain washer
- For Use with fine threaded grade 8 fasteners
- Gold Cad. finish
- See Chart below for dimensions- See Chart below for dimensions
- Plain washer
- For Use with coarse threaded grade 8 fasteners
- Gold Cad. finish

Split Lock Hi-Collar locking Socket Head Cap Screw (SHCS) Super   
Notes:
- See Chart below for dimensions
- Silver zinc plated
- for use with grade 8 fasteners
- Standard lock washer
- See Chart below for dimensions
- Black oxide finish
- Smaller OD than standard split lock washer for use on socket head screws
- Smaller OD than standard  washer for use on socket head screws
- Can be used as a shim
- See Chart below for dimensions
- 4130 steel
- Great for in high torque applications or use as a shim
- - Gold Cad. finish

- X Indicates size


AN960 Washer Specifications

Dash No.  
(X above)

Bolt or Screw Size

O.D. (inches)

I.D. (inches)

Thickness

Thin

Thick

-4

#4

.312

.124

.016

.032

-6

#6

.375

.149

.016

.032

-8

#8

.375

.174

.016

.032

-10

3/16"

.438

.203

.032

.063

-416

1/4"

.500

.265

.032

.063

-516

5/16"

.562

.328

.032

.063

-616

3/8"

.625

.390

.032

.063

-716

7/16"

.750

.453

.032

.063

-816

1/2"

.875

.515

.032

.063

-916

9/16"

1.062

.578

.032

.063

-1016

5/8"

1.118

.640

.032

.063

-1216

3/4"

1.312

.765

.032

.090

AN970 Washer Specifications

Dash No.
(X above)

Bolt Size

O.D.
 (inches)

I.D.
(inches)

Thickness
(inches)

-3

3/16"

.875

.203

.063

-4

1/4"

1.125

.265

.063

-5

5/16"

1.375

.328

.063

-6

3/8"

1.625

.390

.063

-7

7/16"

1.812

.453

.109

-8

1/2"

2.000

.515

.109

-10

5/8"

2.375

.640

.125

MS20002 Washer Specifications

Thread Size

MS Part Number

A Dia

B Dia

C Dia

D

Flatness Tolerance

Countersunk

Plain

Max

Min

Max

Min

1/4

MS20002C4

MS20002-4

0.531

0.26

0.252

0.344

0.334

0.078

0.007

5/16

MS20002C5

MS20002-5

0.593

0.324

0.315

0.406

0.396

3/8

MS20002C6

MS20002-6

0.687

0.388

0.378

0.495

0.483

7/16

MS20002C7

MS20002-7

0.781

0.451

0.441

0.557

0.543

1/2

MS20002C8

MS20002-8

0.875

0.515

0.504

0.62

0.604

9/16

MS20002C9

MS20002-9

0.968

0.579

0.568

0.687

0.667

0.01

5/8

MS20002C10

MS20002-10

1.062

0.643

0.631

0.785

0.765

3/4

MS20002C12

MS20002-12

1.25

0.77

0.757

0.91

0.89

78

MS20002C14

MS20002-14

1.437

0.897

0.884

1.035

1.015

1

MS20002C16

MS20002-16

1.625

1.025

1.01

1.16

1.14

1-1/8

MS20002C18

MS20002-18

1.875

1.15

1.135

1.285

1.265

1-1/4

MS20002C20

MS20002-20

2.125

1.275

1.26

1.447

1.427

0.094

1-3/8

MS20002C22

MS20002-22

2.313

1.4

1.385

1.572

1.552

0.015

1-1/2

MS20002C24

MS20002-24

2.5

1.525

1.51

1.697

1.677

USS Washer Dimensions

Bolt Diameter

O.D.

I.D.

Thickness, 
gauge (inch)

3/16 (#10)

9/16

1/4

18 (3/64)

1/4

3/4

5/16

16 (1/16)

5/16

7/8

3/8

14 (5/64)

3/8

1

7/16

14 (5/64)

7/16

1-1/4

1/2

14 (5/64)

1/2

1-3/8

9/16

12 (7/64)

9/16

1-1/2

5/8

12 (7/64)

5/8

1-3/4

11/16

10 (9/64)

3/4

2

13/16

9 (5/32)

7/8

2-1/4

15/16

8 (11/64)

1

2-1/2

1-1/16

8 (11/64)

SAE Washer Dimensions

Bolt Diameter

O.D.

I.D.

Thickness, 
gauge (inch)

3/16 (#10)

1/2

7/32

18 (3/64)

1/4

5/8

9/32

16 (1/16)

5/16

11/16

11/32

16 (1/16)

3/8

13/16

13/32

16 (1/16)

7/16

59/64

15/32

16 (1/16)

1/2

1-1/16

17/32

13 (3/32)

9/16

1-3/16

19/32

13 (3/32)

5/8

1-5/16

21/32

13 (3/32)

3/4

1-1/2

13/16

10 (9/64)

7/8

1-3/4

15/16

10 (9/64)

1

2

1-1/16

10 (9/64)

Split Lock Washer Dimensions

Nominal
Washer Size

A

B

T

W

Inside
Diameter

Outside
Diameter

Mean Sect. Thickness
(T + t)
2

Section Width

Max.

Min.

Med. Max.

Heavy Max.

Med. Min.

Heavy Min.

Med. Min.

Heavy Min.

1/4

0.250

5/16

0.312

3/8

0.375

7/16
1/2

0.4380
0.500

0.262
0.326
0.390
0.4550
0.518

0.254
0.317
0.380
0.443
0.506

0.489
0.586
0.683
0.779
0.873

0.491
0.596
0.691
0.787
0.883

0.062
0.078
0.094
0.109
0.125

0.077
0.097
0.115
0.133
0.151

0.109
0.125
0.141
0.156
0.171

0.110
0.130
0.145
0.160 0.176

Hi Collar Split Lock Washer Dimensions

Nominal
Washer Size

A

B

W

T+t
2  

Inside Diameter

Outside Diameter

Washer Section

Width

Thickness   Split Lock Washer

Mm.

Max.

Max.

Mm.

Mm.  

8

0.164

10

0.190

0.168
0.194

0.175
0.202

0.267
0.294

0.042
0.042

0.047
0.047
 

1/4

0.250

5/16

0.312

3/4

0.375

0.255
0.318
0.382

0.263
0.238
0.393

0.365
0.460
0.533

0.047
0.062
0.076

0.078
0.093
0.125
 
Super Washer Dimensions
Size ID OD Thickness
1/4 .265 .587  .120"
5/16 327 .682 .120"
3/8 395 .750 .120"

 


copyright 2007 Midwest Performance Hardware
MPH, Midwest Performance Hardware, XRP, Aeroquip, Autosol, racing parts, aircraft hardware, Aircraft bolts, Jet nuts, performance pluming, ARP, Prolong, racing hardware, aerospace hardware, Holley parts, Moroso, Competition Engineering, Holochrome, Copaslip, racing supplies, hot rod parts, Jeg's, Summit, Moroso, racing, hose, hose ends, rod bolts, racing bolts, drag racing parts, chassis parts, Dzus, Tyraps, Thomas and Betts, SMC, air hose, fittings, Purosil, anderson plugs, adapters, high performance, brake hoses, brake lines, top fuel, funny car, pro stock, super comp., super comp, pro gas, pro mod, pro mod., engine parts, racing engine parts, NAS bolts, AN bolts, MS bolts, washers, nuts, AN washers, hutchins, hutchens device