779-2801-001

7792801001 Flat Washer

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Datasheet. 779-2801-001 specification

Cross-sectional Shape Style
The style designation indicating the configuration that most nearly corresponds to the cross-sectional shape of the item.

rectangular

Hole Diameter
The length of a straight line which passes through the center of a hole,and terminates at the circumference.

0.135in. and 0.145in. ⁓5/32"

Peripheral Shape Style
The style designation indicating the configuration that most nearly corresponds to the peripheral shape of the item.

round

Center Hole Shape Style
The style designation indicating the configuration that most nearly corresponds to the shape of the center hole.

1 round

Thickness
A measurement of the smallest dimension of an item,in distinction from length or width.

0.045in. and 0.055in. ⁓1/16"

Overall Diameter
A measurement of the longest straight line across a circular cross-sectional plane.

0.210in. and 0.226in. ⁓15/64"

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

copper alloy 260 or copper alloy 268

Material Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.

QQ-B-613 fed spec all material responses

Surface Treatment
The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.

tin

Surface Treatment Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.

580-0151-000 mfr ref single treatment response

Answers.

What material is the flat washer made of ?

Copper alloy 260 or copper alloy 268

What is the inside hole diameter?

0.135 inches minimum and 0.145 inches maximum

What is the NSN for 779-2801-001?

5310-01-049-7359

How is this classified for shipping?

Schedule B number: 7415210000
Copper washers including spring washers not threaded

What's the federal classification of 779-2801-001?

FSC 5310 ⁓ Nuts and washers

Note-nuts and washers, including specially designed, are to be classified in this fsc. a. nuts are a small metal block made in a variety of shapes such as square and hexagonal which is drilled and internally threaded. b. washers are a perforated piece of metal, leather, or other materials of various shapes or forms. they are used primarily as a seat for a bolt, nut, screw, rivet or nail to distribute pressure and prevent endwise motion over an area and/or to prevent movement between two parts by means of restraining features created by the shape of its edges.

Excluding bearing thrust washers (fsc 3120); shims (fsc 5365); ring spacers (fsc 5365); plate spacers (fsc 5365); lock rings (fsc 5365).

NSN 5310-01-049-7359 WASHER,FLAT

tin surface treated 0.135" hole diameter

NIIN
010497359
NIIN Date
10/23/77
Schedule B
7415210000 
Name Code
13393
FIIG
A022B0
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
Metal content unknown
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

Major End Users Countries and entities

  • - Canada 
  • - Germany 
  • - Norway 
  • - Greece 

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Similar by Design Other washers with similar characteristics

Nothing similar to this part number was found in our inventory

779-2801-001 / Washer,flatWhat is the formal definition of this item?

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. the hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). the thickness cannot exceed 25 percent of the largest outside dimension. when the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. the maximum tolerance is applied to dimensions and used as a determining factor. items with separable lamination use shim. for items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. excludes disk, valve, graphite impregnated and lubricated items.