446143

446143 Flat Washer

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Datasheet. 446143 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.

0.182in. and 0.193in. ⁓13/64"

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.

0.036in. and 0.065in. ⁓5/64"

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

0.375in. ⁓3/8"

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

steel

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.

cadmium or zinc

Nondefinitive Spec/std Data
The number,letter,or symbol that indicates the type,style,grade,class,and the like,of an item in a nonidentifying specification or standard.

a type and 1 grade and a class

Answers.

What material is the flat washer made of ?

Steel

What is the inside hole diameter?

0.182 inches minimum and 0.193 inches maximum

What is the NSN for 446143?

5310-00-198-9348

How is this classified for shipping?

Schedule B number: 7318220000
Washers other than lock washers, iron or steel

What's the federal classification of 446143?

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 5310-00-198-9348 WASHER,FLAT

cadmium or zinc surface treated 0.182" hole diameter

NIIN
001989348
NIIN Date
01/01/63
Schedule B
7318220000 
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

Other Part Numbers Parts with same form, fit, and function by other manufacturers

1. FFW92 Cage 81348
2. MS15795-207 Cage 27315
3. PH253 Cage 66289
4. 104-1S8L Cage 80063
5. 1068D100ITEMGG Cage 86848
6. 504C2-34-52 Cage 94033
7. MS15795-207 Cage 80205
8. 12Z3035-35 Cage 94135
9. PC446143 Cage C7432
10. MS15795-207 Cage 96906

Major End Users Countries and entities

  • - Austria 
  • - Brazil 
  • - Spain 
  • - New Zealand 
  • - Germany 
  • - Republic of Korea 
  • - Portugal 
  • - Italy 
  • - Norway 
  • - Greece 
  • - Turkey 

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Similar by Design Other washers with similar characteristics

Nothing similar to this part number was found in our inventory

446143 / 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.