Model: 3278849

Socket Head Cap Screw

Properties:

Thread Direction

Right-hand

Thread Length

0.340 inches

Fastener Length

0.500 inches

Head Style

Flat chamfer

Head Diameter

0.300 inches

Head Height

0.160 inches

Internal Drive Style

Hexagon

Thread Diameter

0.164 inches

Width Across Flats

Between 0.125 inches and 0.127 inches

Thready Qty Per Inch (tpi)

Hardness Rating

31.0 rockwell c and 36.0 rockwell c

Material

Steel comp 416

Material Specification

Qq-s-764, cond a federal specification single material response

Surface Treatment

Passivate

Surface Treatment Specification

H+4-169 fscm 82577 mfr ref single treatment response

Thread Series Designator

Uns

NSN

5305-00-146-3136

Part Number

3278849

Description

Screw,cap,socket Head

CAGE

82577

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 3278849 NSN 5305-00-146-3136

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:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

573

TCC:

SHC:

ACC:

Equipment for Aircraft

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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