1881-396-20

188139620 Concave Washer

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Datasheet. 1881-396-20 specification

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

0.390in. ⁓25/64"

Radius
The distance from the centerline to the axis of the item.

1.590in.

Outside Diameter
The length of a straight line which passes through the center of a circular figure or body,and terminates at the outside circumference.

0.625in.

Material Thickness
A measurement of the smallest dimension of the material,in distinction from length or width.

0.168in.

Color
A characteristic of light that can be specified in terms of luminance,dominant wavelength,and purity.

white

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

aluminum alloy 2024 or aluminum alloy 7075

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-A-225/6, T4 fed spec 1st material response or QQ-A-200/11 fed spec 2nd material response

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.

enamel

Style Designator
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.

concave

Answers.

What quantity is this sold in?

1EA

What is the style?

Concave

What material is the concave washer made of ?

Aluminum alloy 2024 or aluminum alloy 7075

What is the thickness?

0.168 inches

What is the outside diameter?

0.625 inches

What is the inside hole diameter?

0.390 inches

What is the NSN for 1881-396-20?

5310-01-179-7674

How is this classified for shipping?

Schedule B number: 7616108000
nmfc 194120
Cotters, cotter-pins, washers and similar articles, of aluminum

What's the federal classification of 1881-396-20?

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 5310-01-179-7674 WASHER,CONCAVE

concave enamel surface treated 0.168" material thickness 0.625" outside diameter 0.390" hole diameter

NIIN
011797674
NIIN Date
05/21/84
Schedule B
7616108000 
Name Code
15930
FIIG
A022B0
Item Weight
0.000lbs
Item Dimensions
--
QUP
Historical Price
$82.53 EA
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
No precious metals
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

Major End Users Countries and entities

  • - Defense Logistics Agency 

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Shipping Information

Special Handling
Other or no special handling required (sh) 
LTL (less than a truck load rating)
Rating variable 
LCL (less than a car load rating)
Unknown
Special Cargo
No special type of cargo code applicable 
Air Freight (Minimum cargo door size required)
Shipment is not a consolidation and does not exceed 84 inches in any dimension. 
Customs Requirement Classification
Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater 
Commodity (for shipments via water)
Metal hardware 
NMFC (national motor freight code)
194120 WASHERS/GASKETS/PCKG DVCS NOI 
UFC (universal freight code)
95100 

Similar by Design Other washers with similar characteristics

Nothing similar to this part number was found in our inventory

1881-396-20 / Washer,concaveWhat is the formal definition of this item?

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.