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Datasheet. K19701-4 specification
The length of a straight line which passes through the center of a hole,and terminates at the circumference.
0.358in. and 0.364in. ⁓3/8"
The distance from the centerline to the axis of the item.
0.300in. and 0.305in.
The length of a straight line which passes through the center of a circular figure or body,and terminates at the outside circumference.
0.505in. and 0.515in.
A measurement of the smallest dimension of the material,in distinction from length or width.
0.113in. and 0.123in.
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
38.0 rockwell c and 44.0 rockwell c
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel comp 8740 or steel comp 4037
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
MIL-S-6049 mil spec 1st material response and MIL-S-8695 mil spec 2nd 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.
cadmium and chromate
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.
QQ-P-416 TY2 CL2 fed spec 1st treatment response
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
concave
Answers.
Concave
Steel comp 8740 or steel comp 4037
0.113 inches minimum and 0.123 inches maximum
0.505 inches minimum and 0.515 inches maximum
0.358 inches minimum and 0.364 inches maximum
Schedule B number: 7318220000
Washers other than lock washers, iron or steel
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 5310-01-291-4017 WASHER,CONCAVE
concave cadmium surface treated 0.113" material thickness 0.505" outside diameter 0.358" hole diameter
- NIIN
- 012914017
- NIIN Date
- 12/28/88
- Schedule B
- 7318220000
- Name Code
- 15930
- 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
- - Brazil
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K19701-4 / 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.
