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MATERIAL: Alloy steel, heat treated, 49HRC max.

FINISH: Cadmium plate, AMS-QQ-P-416, Type II, Class 2.

THREADS: AS8879 before lubrification.

CLASSIFICATION: 450° F.

MARKING:
  • SD. Optional location.
  • No identification is required on.1640 size and smaller.
PROCUREMENT SPECIFICATION: NASM25027 except tensile strength.

BEARING SURFACE: Shall be square with pitch diameter within X when measured in accordance with NASM25027.

Contact Howmet for the diameter/type in manufacturing
Unit of Measure

A - MAX

N/A 0.708 Inch

B - MIN

N/A 0.680 Inch

C - MIN

N/A 0.562 Inch

D - MAX

N/A 0.467 Inch

D - MIN

N/A 0.437 Inch

H - MAX

N/A 0.328 Inch

H - MIN

N/A 0.313 Inch

S - MIN

N/A 0.160 Inch

V - MIN

N/A 0.035 Inch

W - MAX

N/A 0.504 Inch

W - MIN

N/A 0.494 Inch

X

N/A 0.005 Inch

Minimum Tensile Strength

N/A 20600 lb

Approx. Weight

N/A 1.300 lb/100

Thread Type

N/A Unified

Configuration 1

N/A Hex

Lock

N/A Crimp Lock

Simplified Material

N/A Alloy Steel

Temperature

N/A 450°F - 235°C

Specific Material

N/A Alloy Steel, Heat Treated, 49 HRc Max.

Thread

N/A 0.4375-20 UNJF-3B

Part Family

N/A PLH35xx