Assembled Washer Screw NSN 5305-00-285-5272

Item Description

A screw, (as modified) to which has been assembled one or more nonremovable washer(s).

NSN: 5305-00-285-5272

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Features and Characteristics

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.324 inches and 0.472 inches

Fastener Length

0.500 inches

Head Style

Pan no. 2

Head Diameter

Between 0.594 inches and 0.615 inches

Head Height

Between 0.162 inches and 0.178 inches

Washer Quantity

Internal Drive Style

Slot

Thread Diameter

0.312 inches

Thready Qty Per Inch (tpi)

Hardness Rating

40.0 rockwell c primary washer and 50.0 rockwell c primary washer

Primary Washer Outside Diameter

Between 0.588 inches and 0.610 inches

Primary Washer Style

Flat external teeth

Primary Washer Material Thickness

Between 0.028 inches and 0.034 inches

Material

Steel comp 1050 primary washer or steel comp 1551 primary washer or steel comp 1552 primary washer or steel comp 1053 primary washer or steel comp 1054 primary washer or steel comp 1055 primary washer or steel comp 1059 primary washer or steel comp 1060 primary washer or steel comp 1561 primary washer or steel comp 1566 primary washer

Material Specification

Sae assn standard all material responses primary washer

Surface Treatment

Cadmium or zinc

Surface Treatment Specification

Qq-p-416, type 1, cl 3 federal specification 1st treatment response or qq-z-325, type 1, cl 3 federal specification 2nd treatment response

Thread Series Designator

Unc

FSC

5305 Screws

NIIN

002855272

NSN

5305002855272

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

SEMS 5/16"-18 X 1/2"LG

Cage Code:

78189

Status:

MSDS:

Part Number:

442689

Cage Code:

21450

Status:

MSDS:

Part Number:

H-4323 ITEM NO. 022

Cage Code:

59180

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 5305-00-285-5272

What are the manufacturers of nsn 5305002855272?

Itw Shakeproof Automotive Products (78189)
Army Weapons Command (21450)
Imo Industries Inc. (59180)

Does this nsn 5305002855272 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 5305002855272
A screw, (as modified) to which has been assembled one or more nonremovable washer(s).

Does nsn 5305002855272 contain any precious metals?
Precious metal content is unknown.

Does nsn 5305002855272 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 5305002855272?
No known electrostatic discharge.

Identification Group

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

INC

FIIG

App. Key

Cond. Code

Status

INC:

06660

FIIG:

A003B0

App. Key:

Cond. Code:

Status:

What do you get when you order from nationalstocknumber.org?

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