Socket Head Cap Screw NSN 5305-01-255-6541

Item Description

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.

NSN: 5305-01-255-6541

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Features and Characteristics

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.330 inches and 0.451 inches

Fastener Length

Between 0.786 inches and 0.816 inches

Head Style

Pan no. 2

Head Diameter

Between 0.477 inches and 0.492 inches

Head Height

Between 0.140 inches and 0.150 inches

Internal Drive Style

Hexagon

Thread Diameter

0.250 inches

Width Across Flats

Between 0.188 inches and 0.190 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

140000 pounds per square inch

Hardness Rating

24.0 rockwell c and 35.0 rockwell c

Minimum Yield Strength

85000 pounds per square inch

Surface Finish

32.0 microinches threads

Material

Iron alloy 660

Material Specification

Ams5731 assn standard single material response or ams5732 assn standard single material response or ams5737 assn standard single material response

Surface Treatment

Passivate

Surface Treatment Specification

Qq-p-35 federal specification single treatment response

Thread Series Designator

Unjf

FSC

5305 Screws

NIIN

012556541

NSN

5305012556541

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

LD111-0058-0406

Cage Code:

43999

Status:

MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov

Schedule B Number: 7318152000
NAICS: 332722
SITC: 69421
Description: Bolts and bolts and their nuts or washers exported in the same shipment
End Use (Code 12110):
Iron and steel products, other

Q & A

Frequently asked questions for NSN 5305-01-255-6541

What are the manufacturers of nsn 5305012556541?

Boeing Company, The (43999)

Does this nsn 5305012556541 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 5305012556541
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.

Does nsn 5305012556541 contain any precious metals?
No precious metal content.

Does nsn 5305012556541 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 5305012556541?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)

INC

FIIG

App. Key

Cond. Code

Status

INC:

16282

FIIG:

A003B0

App. Key:

Cond. Code:

Status:

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On Time Delivery
Certificate of Conformance
Quality Inspected Parts
Quality Fast Service