Model: 401939H

Plain Stud

Properties:

Thread Class

3a nut thread

Thread Pitch Diameters

+0.3956/+0.3976 inches stud thread

Thread Direction

Right-hand nut thread

Thread Direction

Right-hand stud thread

Thread Length

0.940 inches stud thread

Thread Length

0.690 inches nut thread

Overall Length

2.750 inches

Distance From Cotter Pin Hole Centerline To Nut End

0.110 inches first hole

Cotter Pin Hole Diameter

0.065 inches first hole and 0.072 inches first hole

Thready Qty Per Inch (tpi)

14 stud thread

Thready Qty Per Inch (tpi)

20 nut thread

Hardness Rating

Between 28.0 rockwell c and 34.0 rockwell c

Thread Size

0.438 inches nut thread

Thread Size

0.438 inches stud thread

Material

Steel comp 8640 or steel comp 8740 or steel comp 4140

Material Specification

Qq-s-624 federal specification all material responses

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416, type 1, cl 3 federal specification single treatment response

Thread Series Designator

Unc stud thread

Thread Series Designator

Unf nut thread

NSN

5307-00-734-8800

Part Number

401939H

Description

Stud,plain

CAGE

02978

Part 401939H NSN 5307-00-734-8800

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15948

FIIG:

A051A0

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

573

TCC:

SHC:

ACC:

Construction Materials

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