3040-00-531-0688

Find complete technical information, availability, and procurement data for: 3040-00-531-0688
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Federal Supply Group

Mechanical Power Transmission Equipment

Federal Supply Classification

3040 Miscellaneous Power Transmission Equipment

National Stock Number

3040-00-531-0688

Item Name Code

22914

Assigment Date

01/01/1963 (63 years ago)

A thin flat metal or plastic item of various peripheral shapes having a solid or laminated cross-section. It is designed to maintain a predetermined distance between two surfaces. For round items without a hole and having a solid rectangular cross-section use disk, solid, plain. Items with either (1) a solid (not laminated) cross-section, or (2) a non-separable laminated cross-section with one hole centrally located, must have a thickness less than 0.006 inch (0.152 mm) for items less than 1/4 inch (6.35 mm) outside diameter or shortest distance across peripheral flats, and less than 0.016 inch (0.406 mm) for items 1/4 inch (6.35 mm) or more outside diameter, or shortest distance across peripheral flats. For items with thickness greater than those indicated above, see spacer, plate; washer, flat and spacer, ring. When thickness and/or outside diameter or shortest distance across peripheral flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance. See also shim stock, laminated; shim stock assortment, gasket; and bearing, washer, thrust.

0.7550 inches minimum and 0.7700 inches maximum second end groove diameter, woodruff keyway and circular grooved second end style, 0.5320 inches nominal second end groove width, circular grooved first end style, not identical end similarity

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

First End Style: circular grooved
End Similarity: not identical
Second End Style: woodruff keyway and circular grooved
Second End Groove Width: 0.5320 inches nominal
Second End Groove Diameter: 0.7550 inches minimum and 0.7700 inches maximum
Overall Length: 4.625 inches nominal
First End Distance From End To Groove: 0.844 inches nominal
First End Diameter: 0.6245 inches minimum and 0.6248 inches maximum
Second End Keyway Width: 0.1240 inches minimum and 0.1255 inches maximum
Second End Distance From Keyway Center To End: 1.250 inches nominal
Second End Diameter: 0.6688 inches minimum and 0.6691 inches maximum
Step Quantity: 4
Largest Step Diameter: 0.7867 inches minimum and 0.7871 inches maximum
Surface Finish: 63.0 microinches
Material: steel
Material Document And Classification: spec qq-s-634,1015-1020 mil spec single material response