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Datasheet. 7312-4018-1 specification
The style designation indicating the configuration that most nearly corresponds to the cross-sectional shape of the item.
rectangular
The length of a straight line which passes through the center of a hole,and terminates at the circumference.
0.250in. and 0.256in. ⁓17/64"
The style designation indicating the configuration that most nearly corresponds to the peripheral shape of the item.
rectangular
The style designation indicating the configuration that most nearly corresponds to the shape of the center hole.
1 round
A measurement of the smallest dimension of an item,in distinction from length or width.
0.032in. ⁓3/64"
A measurement of the longest dimension of any object,in distinction from width.
0.510in. and 0.570in.
The national stock number or the identification information of the end equipment for which the item is a part.
an/APN-169B
The shortest straight line between flats,perpendicular to the height.
0.310in. and 0.370in. ⁓3/8"
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.
washer, switch KEYING-Slotted at one end, width of slot .067 pom .003, hole center to the end of slot radius .250, length of key .023 plus .005 or minus .002, width of key .030 to .035, center of hole from slotted end .340
The chemical compound or mechanical mixture properties of which the item is fabricated.
copper alloy 268
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, comp 1 fed spec single material response
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.
nickel
Answers.
Copper alloy 268
0.250 inches minimum and 0.256 inches maximum
Schedule B number: 7415210000
nmfc 194160
Copper washers including spring washers not threaded
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 5310-01-106-5813 WASHER,FLAT
Used on an/apn-169b. nickel surface treated washer, switch keying-slotted at one end, width of slot .067 pom .003, hole center to the end of slot radius .250, length of key .023 plus .005 or minus .002, width of key .030 to .035, center of hole from slotted end .340 0.250" hole diameter
- NIIN
- 011065813
- NIIN Date
- 01/22/81
- Schedule B
- 7415210000
- Name Code
- 13393
- FIIG
- A022B0
- QUP
- Historical Price
- $0.28 EA
- 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
- - Department of The Air Force
- - Egypt
Availability for 7312-4018-1 A member of our team will provide you with a price and availability quote
Request a Quote »Shipping Information
- Special Handling
- Other or no special handling required (sh)
- LTL (less than a truck load rating)
- 50.0
- 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)
- 194160 WASHER OR GASKETS, IRON OR STEEL,
- UFC (universal freight code)
- 55210
Similar by Design Other washers with similar characteristics
Nothing similar to this part number was found in our inventory
7312-4018-1 / 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.
