MIL-PRF-22885 Switches, Push Button, Illuminated, General Specification ForThis specification covers the general requirements for manually operated illuminated push button switches, switch assemblies \(see 6.4.1\), and associated modular subassemblies. As used in this specification, the term "switches" should include the associated modular subassemblies, including switches, indicator lights, actuators, lenses, color filters, panel seals, barriers, and so forth.

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14

MIL-PRF-22885H

1.2.6 Display type. The lens display is designated by a single letter in accordance with table VI.

TABLE VI. Display type.

Symbol

Display

Colored background (shows color both when

nonilluminated and illuminated).

White background (white until illuminated,

then background appears in color).

Sunlight readable (legend not visible until

illuminated, then legend appears in color.

Background is black).

Opaque background (visible legend with

illuminating characters).

Hidden legend (same as display type S

except contrast requirements do not apply).

Hidden legend (black legend on an obscure

background) when unlighted. When illuminated,

legend is black and the background appears in

color. The display should not appear energized

in the unlighted condition.

1.3 Part or Identifying Number (PIN). The PIN (when applicable) will consist of the letter "M", the basic number of

the specification sheet, and an assigned dash number (see 3.1), as shown in the following example:

22885/XX

-XXXX



Designator

Specification

Dash number

sheet number

(see specification

sheet for formulation)

2. APPLICABLE DOCUMENTS

2.1 General. The documents listed in this section are specified in sections 3 and 4 of this specification. This

section does not include documents cited in other sections of this specification or recommended for additional

information or as examples. While every effort has been made to ensure the completeness of this list, document

users are cautioned that they must meet all specified requirements documents cited in sections 3 and 4 of this

specification, whether or not they are listed.

2.2 Government documents.

2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a

part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are

those cited in the solicitation or contract.