Concave Washer NSN 5310-00-377-0604

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: 5310-00-377-0604

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Features and Characteristics

Hole Diameter

0.370 inches

Radius

0.260 inches

Outside Diameter

Between 0.495 inches and 0.505 inches

Material Thickness

Between 0.160 inches and 0.170 inches

Material

Steel comp 630 or steel comp 631 or steel comp 632

Material Specification

Ams 5643 assn standard 1st material response or ams 5528 assn standard 2nd material response or ams 5520 assn standard 3rd 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

76301-st3-552 manufacturers standard

FSC

5310 Nuts And Washers

NIIN

003770604

NSN

5310003770604

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

HL382-8PBW

Cage Code:

06950

Status:

MSDS:

Part Number:

ST3M552-4

Cage Code:

76301

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 5310-00-377-0604

What are the manufacturers of nsn 5310003770604?

Arconic Global Fasteners & Rings, (06950)
Hi-shear Corporation (73197)
Lisi Aerospace Canada Corp (L4528)
Alcoa Fastening Systems (C4293)
Boeing Company, The (76301)
Alcoa Global Fasteners, Inc. (92215)

Does this nsn 5310003770604 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 5310003770604
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 5310003770604 contain any precious metals?
Precious metal content is unknown.

Does nsn 5310003770604 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 5310003770604?
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
Quality Fast Service