Model: NAS6204-4Y

Shoulder Bolt

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.345 inches and 0.395 inches

Fastener Length

Between 0.605 inches and 0.635 inches

Head Style

Dished hexagon

Head Height

Between 0.125 inches and 0.140 inches

Width Between Flats

Between 0.429 inches and 0.439 inches

Shoulder Diameter

0.2797 inches first shoulder and 0.2807 inches first shoulder

Shoulder Length

0.240 inches first shoulder and 0.260 inches first shoulder

Thread Diameter

0.250 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

160000 pounds per square inch

Hardness Rating

36.0 rockwell c and 40.0 rockwell c

Shoulder Shape

Round first shoulder

Material

Steel comp e4340 or steel comp 8740

Material Specification

Mil-s-5000 military specification 1st material response or mil-s-6049 military specification 2nd material response or ams6322 assn standard 2nd material response

Surface Treatment

Cadmium and chromate

Surface Treatment Specification

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

Thread Series Designator

Unjf

Specification Data

80205-nas6204 professional/industrial association standard

NSN

5306-01-303-7390

Part Number

NAS6204-4Y

Description

Bolt,shoulder

CAGE

80205

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is not designed to be held or driven with an inserted drivers. A locking feature may be incorporated in the design of the head or threads. For items with a thread diameter smaller than no. 10 (0.190 in.) (5 mm) and those items with an inserted drive head, use screw, shoulder. For items which are no. 10 (0.190 in.) (5 mm) or larger in size and are both shouldered and have an externally relieved body, use bolt, externally relieved body. Excludes thumbscrew.

Part NAS6204-4Y NSN 5306-01-303-7390

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

04905

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