scope:

This specification covers the general requirements for electrical and electronic ceramic insulators fabricated from materials conforming to MIL-I-10. For purposes of this specification, the term "insulators" is used herein when referring to electrical and electronic ceramic insulators (see 6.1).

This specification shall cover only those insulators characterized by combining the specific designators of 1.2.1 to 1.2.5, inclusive.

NL 222×6/04T B 56- 013 Class Insulating compound Finish Style Length (1.2.1) (1.2.2) (1.2.3) (1.2.4) (1.2.5)

Insulators shall be identified by the two-letter designator NL.

Insulators shall be further identified .by appropriate designators of MIL-I-10, following the above designator, to represent insulating compound (see 6.2). The X-band and thermal conductivity designators of MIL-I-10 shall be applicable only when insulators are manufactured from insulating compounds designed for frequency applications from 100 MHz to 24 GHz or for high thermal conductivity applications.

Insulators shall be further identified by a single letter designator, B, W, or C, following the above designators, to represent finish (see 6.2).

Symbol Finish ^1/ B - - - - - - - - - - Brown glaze. Glass and glass-bonded mica are not included. W - - - - - - - - - - White glaze. Glass and glass-bonded mica are not included. C - - - - - - - - - - Natural vitreous surface. Includes the fired ceramics, e.g. , porcelain, steatite, and alumina; and the non-fired ceramics, e.g., glass and glass-bonded mica.

Insulators shall be further identified by a three-character designator, a two-digit number followed by a hyphen, following the above designators, to represent style. Style numbers lower than 10 shall be preceded by a zero.

Style Description 01 to 29, incl. Standoff insulator 30 to 39, incl. Feedthru insulator 40 to 49, incl. Bushing insulator 50 to 59, incl. Bowl insulator 60 to 75, incl. Strain insulator 76 to 79, incl. Spreader insulator 80 to 89, incl. Pin insulator 90 to 99, incl. Miscellaneous insulators, e.g., barrier, bead, cleat, disk, knob, etc.

Insulators shall be further identified by a three-digit number, following the above designators, to represent the length of the part in units of 0.125 inch. The length designator numbers less than 100 shall be preceded by the appropriate number of zeros, i.e. , 004, 010, etc.

intended Use: