CO-1TW

CO1TW Shouldered Washer

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Quality Commitment

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Datasheet. CO-1TW specification

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

0.257in. ⁓17/64"

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

0.307in. and 0.313in.

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.

0.680in. and 0.690in.

Shoulder Height

0.040in.

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

0.075in. and 0.080in.

End Item Identification
The national stock number or the identification information of the end equipment for which the item is a part.

4610-01-219-8707

Special Features
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.

shoulder dia flares 15.0 deg fm small dia at base

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

plastic polytetrafluoroethylene

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

shouldered

Answers.

What quantity is this sold in?

1EA

What is the style?

Shouldered

What material is the shouldered washer made of ?

Plastic polytetrafluoroethylene

What is the thickness?

0.075 inches minimum and 0.080 inches maximum

What is the outside diameter?

0.680 inches minimum and 0.690 inches maximum

What is the inside hole diameter?

0.257 inches

What is the NSN for CO-1TW?

5310-01-349-6177

How is this classified for shipping?

Schedule B number: 3926904500
nmfc 093486
Gaskets,washers & other seals

What's the federal classification of CO-1TW?

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 5310-01-349-6177 WASHER,SHOULDERED

Used on 4610-01-219-8707. shouldered shoulder dia flares 15.0 deg fm small dia at base 0.075" material thickness 0.680" outside diameter 0.257" hole diameter

NIIN
013496177
NIIN Date
11/30/91
Schedule B
3926904500 
Name Code
15934
FIIG
A022B0
Item Weight
0.000lbs
Item Dimensions
--
QUP
Historical Price
$9.63 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

  • - Department of The Army 

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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 and metal products, nos, (less than 35 feet) 
NMFC (national motor freight code)
093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3) 
UFC (universal freight code)
48950 

Similar by Design Other washers with similar characteristics

Nothing similar to this part number was found in our inventory

CO-1TW / Washer,shoulderedWhat is the formal definition of this item?

A washer, round in shape, and having a centrally located hole. one bearing surface is flat and unbroken, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. the thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. for items having a shoulder (boss) of greater thickness, use bearing, sleeve; bushing sleeve; or spacer, sleeve. excludes insulator, washer and thrust type washers.