Concave Washer NSN 5310-00-083-9303

Item Description

A washer which is round with a centrally located hole. One bearing surface is smooth, flat, and unbroken, the other bearing surface is smooth, unbroken, and is recessed to form a curved or spherical contour. See also washer (1), convex. Excludes washer (1), recessed and bearing, washer, thrust.

NSN: 5310-00-083-9303

Stock Availability

NSN 5310000839303 availability
(as of 12/19/2023).

NS: 1575
NE: 19691
SV: 1

Note: Availability of this item may have changed since it was last checked. Request a quote for an updated price and availability quote.

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Related NSN

Features and Characteristics

Hole Diameter

Between 0.252 inches and 0.258 inches

Radius

Between 0.235 inches and 0.240 inches

Outside Diameter

Between 0.375 inches and 0.385 inches

Recess Depth

Between 0.040 inches and 0.050 inches

Material Thickness

Between 0.078 inches and 0.088 inches

Hardness Rating

Between 38.0 rockwell c and 44.0 rockwell c

Surface Finish

63.0 microinches counterbore wall

Heat Treatment

As fabricated

Material

Steel comp 8740 or steel comp 8630 or steel comp 4130 or steel comp 4027

Material Specification

Mil-s-6049 military specification 1st material response or mil-s-6050 military specification 2nd material response or mil-s-6758 military specification 3rd material response or mil-s-18729 military specification 3rd material response or astm a322 assn standard 4th material response

Surface Treatment

Cadmium and chromate

Surface Treatment Specification

Qq-p-416, type 2, cl 3 federal specification single treatment response

Style Designator

Concave

Specification Data

81205-bacw10au manufacturers standard

FSC

5310 Nuts And Washers

NIIN

000839303

NSN

5310000839303

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

TLN1020L3W

Cage Code:

17446

Status:

MSDS:

Part Number:

BACW10AU3

Cage Code:

81205

Status:

MSDS:

Part Number:

3M348L3

Cage Code:

80539

Status:

MSDS:

Part Number:

K19701P3

Cage Code:

R1120

Status:

MSDS:

Part Number:

53488W-1032

Cage Code:

56878

Status:

MSDS:

Part Number:

AS46-3

Cage Code:

10630

Status:

MSDS:

Part Number:

6073-0

Cage Code:

72962

Status:

MSDS:

Foreign Trade & Schedule B

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

Schedule B Number: 7318220000
NAICS: 332722
SITC: 69422
Description: Washers other than lock washers, iron or steel
End Use (Code 12300):
Finished metal shapes

Q & A

Frequently asked questions for NSN 5310-00-083-9303

What are the manufacturers of nsn 5310000839303?

Huck International, Inc. (17446)
Alcoa Fastening Systems (C4293)
The Boeing Company (81205)
Reid Products Inc. (59563)
Sps Technologies, Llc (80539)
Alcoa Global Fasteners, Inc. (92215)
Satair A/s (R1120)
Sps Technologies, Llc (56878)
Anillo Industries, Inc. (10630)
Arconic Global Fasteners & Rings, (15653)
Sps Technologies, Llc (27624)
Boeing Company, The (76301)
Harvard Industries Inc (72962)
Huck Intl Inc (97928)

Does this nsn 5310000839303 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 5310000839303
A washer which is round with a centrally located hole. one bearing surface is smooth, flat, and unbroken, the other bearing surface is smooth, unbroken, and is recessed to form a curved or spherical contour. see also washer (1), convex. excludes washer (1), recessed and bearing, washer, thrust.

Does nsn 5310000839303 contain any precious metals?
Precious metal content is unknown.

Does nsn 5310000839303 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 5310000839303?
No known electrostatic discharge.

Identification Group

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

INC

FIIG

App. Key

Cond. Code

Status

INC:

15930

FIIG:

A022B0

App. Key:

Cond. Code:

Status:

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On Time Delivery
Certificate of Conformance
Quality Inspected Parts
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