Model: 591761-4

Socket Head Cap Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.780 inches

Fastener Length

0.830 inches

Head Style

Flat extended washer

Head Diameter

0.310 inches

Head Height

0.190 inches

Extended Washer Diameter

0.380 inches

Extended Washer Thickness

0.070 inches

Internal Drive Style

Hexagon

Thread Diameter

0.190 inches

Width Across Flats

Between 0.1562 inches and 0.1582 inches

Thready Qty Per Inch (tpi)

Hardness Rating

32.0 rockwell c and 38.0 rockwell c

Material

Stainless steel

Material Specification

Ams5616 assn standard single material response

Thread Series Designator

Unf

NSN

5305-00-945-8595

Part Number

591761-4

Description

Screw,cap,socket Head

CAGE

73030

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 591761-4 NSN 5305-00-945-8595

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:

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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