Model: 28704-98C-3

Setscrew

Properties:

Thread Class

Thread Direction

Right-hand

Fastener Length

Between 0.302 inches and 0.322 inches

Head Style

Headless (setscrew)

Point Style

Cup

Internal Drive Style

Hexagon

Thread Diameter

0.164 inches

Width Across Flats

0.078 inches

Thready Qty Per Inch (tpi)

Hardness Rating

45.0 rockwell c and 53.0 rockwell c

Material

Steel comp 4032 or steel comp 4037 or steel comp 4137 or steel comp 4140 or steel comp 8630 or steel comp 8740

Material Specification

66 federal standard all material responses

Surface Treatment

Oxide film

Thread Series Designator

Unc

Specification Data

81348-ff-s-200 government specification

Nondefinitive Specification/std Data

1 type and 4 style and 8-32 size and 5/16 length

NSN

5305-01-193-6260

Part Number

28704-98C-3

Description

Setscrew

CAGE

56878

An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.

Part 28704-98C-3 NSN 5305-01-193-6260

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

06672

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:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

713

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