Assembled Washer Screw NSN 5305-01-121-2689

Item Description

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

NSN: 5305-01-121-2689

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Features and Characteristics

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.202 inches and 0.250 inches

Fastener Length

Between 0.218 inches and 0.250 inches

Head Style

Pan no. 2

Head Diameter

Between 0.306 inches and 0.322 inches

Head Height

Between 0.085 inches and 0.096 inches

Washer Quantity

Internal Drive Style

Offset cruciform (torque set)

Thread Diameter

0.164 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

55000 pounds per square inch

Secondary Washer Relationship To Primary Washer

Not identical

Secondary Washer Style

Flat

Primary Washer Outside Diameter

0.293 inches

Secondary Washer Outside Diameter

Between 0.307 inches and 0.317 inches

Primary Washer Style

Split helical ring

Primary Washer Material Thickness

0.040 inches

Secondary Washer Material Thickness

Between 0.013 inches and 0.019 inches

Material

Copper alloy 510 primary washer

Material Specification

Qq-p-750, comp a federal specification single material response primary washer

Surface Treatment

Tin

Surface Treatment Specification

Qq-n-290 federal specification single treatment response

Thread Series Designator

Unc

Specification Data

80205-nas720 professional/industrial association standard

FSC

5305 Screws

NIIN

011212689

NSN

5305011212689

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

NAS720B8-4

Cage Code:

80205

Status:

MSDS:

Foreign Trade & Schedule B

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

Schedule B Number: 7415338550
NAICS: 332722
SITC: 69433
Description: Other copper screws (not for wood) bolts and nuts
End Use (Code 12300):
Finished metal shapes

Q & A

Frequently asked questions for NSN 5305-01-121-2689

What are the manufacturers of nsn 5305011212689?

National Aerospace Standards (80205)

Does this nsn 5305011212689 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 5305011212689
A screw, (as modified) to which has been assembled one or more nonremovable washer(s).

Does nsn 5305011212689 contain any precious metals?
No precious metal content.

Does nsn 5305011212689 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 5305011212689?
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:

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