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MATERIAL: Alloy steel AISI 8740 or equivalent.

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

LOCKING INSERT: Gold color nylon (250° F max. performance).

MAGNETIC PARTICLE INSPECTION: Parts individually inspected in accordance with military specification MIL-I-6868.

THREADS: In accordance with AS 8879.

PERFORMANCE : NASM 25027, except Min Tensile Strenght equivalent at to 180.000 PSI at 98% of the basic pitch diameter, for sizes -4, -5 and the basic diameter for sizes -6 and larger. The values tabuled above will be obtained when Tensile tested on a Bolt having a minimum Tensile Strength of 200.000 PSI.

APPLICATION: This design is suited for application involving high strength Bolts such as NASM 21250 and the 20004 Series.

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

A -.000 / -.010

0.781 Inch

C - REF

0.633 Inch

H - MAX

0.516 Inch

V - REF

0.107 Inch

W - MAX

0.564 Inch

W - MIN

0.553 Inch

Ultimate Tensile

23200 lb/min

Approx. Weight

2.800 lb/100

Thread Type

Unified

Configuration 1

Double Hex

Lock

Non-Metallic Insert

Simplified Material

Alloy Steel

Strength

180KSI - 1250Mpa

Temperature

250°F - 120°C

Specific Material

Alloy Steel AISI 8740 or equivalent

Thread

0.4375-20 UNJF-3B

Part Family

DHN 35