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MS51969 Nut, Plain, Hexagon - Brass, Black Chemical Finish, Unc-2B

Pages 1 - 2 - 3

MS51969C

TABLE I. Dash Numbers and Dimensions.

MATERIAL

DASH

BRASS

NOMINAL SIZE OR

BASIC MAJOR DIAMETER OF THREAD

1/4

.2500

5/16

.3125

3/8

.3750

7/16

.4375

1/2

.5000

9/16

.5625

5/8

.6250

3/4

.7500

7/8

.8750

1.0000

THREADS PER INCH

WIDTH NOM. F ACROSS MAX.

FLATS MIN.

7/16

.4375

.428

1/2

.5000

.489

9/16

.5625

.551

11/16

.6875

.675

3/4

.7500

.736

7/8

.8750

.861

15/16

.9375

.922

1-1/8

1.1250

1.088

1-5/16

1.3125

1.269

1-1/2

1.5000

1.450

WIDTH MAX.

G ACROSS CORNERS MIN.

.505

.488

.577

.557

.650

.628

.794

.768

.866

.840

1.010

.982

1.083

1.051

1.299

1.240

1.516

1.447

1.732

1.653

NOM.

H THICKNESS MAX.

MIN.

7/32

.226

.212

17/64

.273

.258

21/64

.337

.320

3/8

.385

.365

7/16

.448

.427

31/64

.496

.473

35/64

.559

.535

41/64

.665

.617

3/4

.776

.724

55/64

.887

.831

MATERIAL

DASH NO

BRASS

NOMINAL SIZE OR

BASIC MAJOR DIAMETER OF THREAD

1-1/8

1.1250

1-1/4

1.2500

1-3/8

1.3750

1-1/2

1.5000

1-3/4

1.7500

2.0000

2-1/4

2.2500

2-1/2

2.5000

2-3/4

2.7500

3.0000

THREADS PER INCH

4-1/2

WIDTH NOM.

F ACROSS MAX.

FLATS MIN.

1-11/16

1.6875

1.631

1-7/8

1.8750

1.812

2-1/16

2.0625

1.994

2-1/4

2.2500

2.175

2-5/8

2.6250

2.538

3.0000

2.900

3-3/8

3.3750

3.262

3-3/4

3.7500

3.625

4-1/8

4.1250

3.988

4-1/2

4.5000

4.350

WIDTH MAX.

G ACROSS CORNERS MIN.

1.949

1.859

2.165

2.066

2.382

2.273

2.598

2.480

3.031

2.893

3.464

3.306

3.897

3.719

4.330

4.133

4.763

4.546

5.196

4.959

NOM.

H THICKNESS MAX.

MIN.

31/32

.999

.939

1-1/16

1.094

1.030

1-11/64

1.206

1.138

1-9/32

1.317

1.245

1-1/2

1.540

1.460

1.23/32

1.763

1.675

1-59/64

1.970

1.874

2-9/64

2.193

2.089

2-23/64

2.415

2.303

2-37/64

2.638

2.518

NOTES:

1. Material: Brass, Naval, in accordance with ASTM B21/B21M, Copper, Alloy UNS C46200, H04 hard or UNS C46400, H02 half-hard.

2. Protective Coating: Black chemical finish in accordance with MIL-F-495.

3. Threads: The threads shall be in accordance with FED-STD-H28/2.

4. Dimensions: All dimensions are in inches, unless otherwise specified.

5. Part Number: The MS part number consists of the MS number, plus the dash number.

Example: MS51969-1.

6. Referenced documents shall be of the issue in effect on date of invitations for bid.

7. For design feature purposes, this standard takes precedence over procurement documents referenced herein.