Model: 245AS878

Socket Head Cap Screw

Special Features:

Counterbore hole in threaded end 0.200 in. Max depth; furnished with insert 0.123 in. Min and 0.125 in. Max dia

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.654 inches

Fastener Length

0.737 inches

Head Diameter

Between 0.639 inches and 0.641 inches

Head Height

Between 0.290 inches and 0.300 inches

Internal Drive Style

Hexagon

Thread Diameter

0.375 inches

Width Across Flats

Between 0.188 inches and 0.190 inches

Thready Qty Per Inch (tpi)

Hardness Rating

34.0 rockwell c and 38.0 rockwell c

Part Name Assigned By Controlling Agency

Navy special project

Material

Steel comp e4340 or steel comp 4140

Surface Treatment

Cadmium and chromate

Surface Treatment Specification

Qq-p-416 type 2 cl 1 federal specification single treatment response

Thread Series Designator

Unf

NSN

5305-01-353-6887

Part Number

245AS878

Description

Screw,cap,socket Head

CAGE

30003

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.

Part 245AS878 NSN 5305-01-353-6887

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

16282

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:

096640

UFC:

50600

LTL:

70.0

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