DOT - MIL-L-21247 (2)
LENSES, BEACON LIGHT, 300MM
active, Most Current
| Organization: | DOT |
| Publication Date: | 1 July 1958 |
| Status: | active |
| Page Count: | 1 |
Document History
MIL-L-21247 (2)
July 1, 1958
LENSES, BEACON LIGHT, 300MM
A description is not available for this item.
January 28, 1958
LENSES, BEACON LIGHT, 300MM
This specification covers the requirements for a one piece, closed top, drum type, pressed glass Fresnel lens.
Lenses shall be of the following classes as specified (see 6.2): Class 1 - Clear Class...