The gracefully curved mastarm is bolted to the tapered octagonal pole and braced for rigidity. The curved mastarm raises the luminaire 1� above the pole top. This arm design blends well with our davit design models for those who prefer a bolt-on arm. A popular design for street, highway, bridge and ramp lighting as well as parking lots and drive-in businesses.

Breakaway Safety Bases meeting AASHTO requirements are available.

Finish:
Choice of Millerbond Factory Finish, Prime Coat, Self-Weathering or Galvanized.

Shaft Material:
High-strength steel with minimum yield strength of 50,000 PSI; ultimate tensile strength of 70,000 PSI.

Note:
Poles with mounting height over 40� are furnished in two sections with a telescoping joint.

Twin Models Available:

Base Styles:

 (Click Images for More Information)

Mast Arm

Mounting

Max EPA

Weight of

Dimensions

Anchor Bolt

Model

Spread

Height

@80 MPH

Pole (lbs.)

Top / Bottom

Circle / Size

No.

4'

26.0'

2.4

244

4" / 8.6"

11" / 1"x40"

NA4-260

4'

31.0'

2.4

285

4" / 8.6"

11" / 1"x40"

NA4-310

4'

36.0'

2.4

326

4" / 8.6"

11" / 1"x40"

NA4-360

4'

41.0'

2.4

392

4" / 9.6"

12" / 1"x40"

NA4-410

4'

51.0'

2.4

662

4" / 10.6"

13.5" / 1.25"x48"

NA4-510

6'

26.0'

2.4

250

4" / 8.6"

11" / 1"x40"

NA6-260

6'

31.0'

2.4

291

4" / 8.6"

11" / 1"x40"

NA6-310

6'

36.0'

2.4

332

4" / 8.6"

11" / 1"x40"

NA6-360

6'

41.0'

2.4

398

4" / 9.6"

12" / 1"x40"

NA6-410

6'

51.0'

2.4

668

4" / 10.6"

13.5" / 1.25"x48"

NA6-510

8'

26.0'

2.4

257

4" / 8.6"

11" / 1"x40"

NA8-260

8'

31.0'

2.4

298

4" / 8.6"

11" / 1"x40"

NA8-310

8'

36.0'

2.4

339

4" / 8.6"

11" / 1"x40"

NA8-360

8'

41.0'

2.4

405

4" / 9.6"

12" / 1"x40"

NA8-410

8'

51.0'

2.4

675

4" / 10.6"

13.5" / 1.25"x48"

NA8-510

Mast Arm

Mounting

Max EPA

Weight of

Dimensions

Anchor Bolt

Model

Spread

Height

@80 MPH

Pole (lbs.)

Top / Bottom

Circle / Size

No.

4'

25.75'

2.4

249

4" / 7.0"

15" / 1"x40"

NH4-259

4'

30.75'

2.4

317

4" / 8.6"

15" / 1"x40"

NH4-309

4'

35.75'

2.4

358

4" / 8.6"

15" / 1"x40"

NH4-359

4'

40.75'

2.4

422

4" / 9.6"

15" / 1"x40"

NH4-409

4'

50.75'

2.4

693

4" / 10.6"

15" / 1.25"x48"

NH4-509

6'

25.75'

2.4

255

4" / 7.0"

15" / 1"x40"

NH6-259

6'

30.75'

2.4

323

4" / 8.6"

15" / 1"x40"

NH6-309

6'

35.75'

2.4

364

4" / 8.6"

15" / 1"x40"

NH6-359

6'

40.75'

2.4

428

4" / 9.6"

15" / 1"x40"

NH6-409

6'

50.75'

2.4

699

4" / 10.6"

15" / 1.25"x48"

NH6-509

8'

25.75'

2.4

262

4" / 7.0"

15" / 1"x40"

NH8-259

8'

30.75'

2.4

330

4" / 8.6"

15" / 1"x40"

NH8-309

8'

35.75'

2.4

371

4" / 8.6"

15" / 1"x40"

NH8-359

8'

40.75'

2.4

435

4" / 9.6"

15" / 1"x40"

NH8-409

8'

50.75'

2.4

706

4" / 10.6"

15" / 1.25"x48"

NH8-509

Mast Arm

Mounting

Max EPA

Weight of

Dimensions

Anchor Bolt

Model

Spread

Height

@80 MPH

Pole (lbs.)

Top / Bottom

Circle / Size

No.

4'

25.25'

2.4

265

4" / 7.0"

15" / 1"x40"

NT4-253

4'

30.25'

2.4

331

4" / 8.6"

15" / 1"x40"

NT4-303

4'

35.25'

2.4

372

4" / 8.6"

15" / 1"x40"

NT4-353

4'

40.25'

2.4

536

4" / 9.6"

15" / 1"x40"

NT4-403

4'

50.25'

2.4

789

4" / 10.6"

17" / 1.25"x48"

NT4-503

6'

25.25'

2.4

271

4" / 7.0"

15" / 1"x40"

NT6-253

6'

30.25'

2.4

337

4" / 8.6"

15" / 1"x40"

NT6-303

6'

35.25'

2.4

378

4" / 8.6"

15" / 1"x40"

NT6-353

6'

40.25'

2.4

542

4" / 9.6"

15" / 1"x40"

NT6-403

6'

50.25'

2.4

795

4" / 10.6"

17" / 1.25"x48"

NT6-503

8'

25.25'

2.4

278

4" / 7.0"

15" / 1"x40"

NT8-253

8'

30.25'

2.4

344

4" / 8.6"

15" / 1"x40"

NT8-303

8'

35.25'

2.4

385

4" / 8.6"

15" / 1"x40"

NT8-353

8'

40.25'

2.4

549

4" / 9.6"

15" / 1"x40"

NT8-403

8'

50.25'

2.4

802

4" / 10.6"

17" / 1.25"x48"

NT8-503

Millerbernd Manufacturing Company
622 6th Street South, P.O. Box 98
Winsted, Minnesota 55395
dclark@millerberndmfg.com
Phone: (320) 485-2111
Fax: (320) 485-4420