Model: A3938-1

Internally Relieved Body Bolt

Properties:

Thread Class

Class 2

Thread Direction

Right-hand

Head Diameter

Between 0.580 inches and 0.590 inches

Head Height

Between 0.080 inches and 0.095 inches

Extended Washer Thickness

1.690 inches

Counterbore Diameter

0.062 inches

Concentric Hole Diameter

0.281 inches

Thread Diameter

0.370 inches

Thready Qty Per Inch (tpi)

Material

Steel

Material Specification

Sae j29, grade 1 assn standard single material response

Surface Treatment

Chromate

Surface Treatment Specification

Qq-z-325a, type ii, class 3 federal specification single treatment response

Thread Series Designator

Unf

NSN

5306-00-169-8412

Part Number

A3938-1

Description

Bolt,internally Relieved Body

CAGE

81834

An externally threaded fastener whose external threaded portion is of one nominal diameter. It has a concentric hole along the longitudinal centerline which may extend a part or the full length of the bolt. The concentric hole along the centerline may be counterbored and/or internally threaded at the head end or the bolt end. The head is designed to be held or driven by an external and/or internal driver. For items having a hole(s) perpendicular to the axis which meet the concentric hole along the longitudinal centerline, see bolt, fluid passage.

Part A3938-1 NSN 5306-00-169-8412

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

06676

FIIG:

A003B0

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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Schedule B and Export

Schedule B: 7318152000
SITC: 69421
End Use: Iron and steel products, other
NAICS: 332722
USDA: 1

Freight Class: Bolts and bolts and their nuts or washers exported in the same shipment