SPANNER, FLAT


No. 1

Double-ended spanners of similar shape provided for general use.  For nuts 5/32" and 3/16" across flats. Length 2.4", thickness 1/16".

No.2

Double-ended spanners of similar shape provided for general use.  For nuts 7/32“ and 1/4" across flats. Length 2.75", thickness 5/64".

No. 3

Double-ended spanners of similar shape provided for general use.  For nuts 9/32" and 5/16" across flats. Length 3.2", thickness 7/64".

No. 4

Double-ended spanners of similar shape provided for general use. For nuts 11/32" and 3/8" across flats. Length 3.5", thickness 1/8".

No. 5

Double-ended spanners of similar shape provided for general use.  For nuts 13/32" and 7/16" across flats. Length 3.8", thickness 5/32".

No. 6

Double-ended spanners of similar shape provided for general use.  For nuts 17/32" and 1/2" across flats. Length 4.2", thickness 11/64".  The No. 6 is specially suitable for the fixing nuts of  Clocks No. 44 and the bank-securing nuts of 2-motion selectors.

No. 7

Double-ended spanner, 6” long and 3/16" thick. For nuts across flats, for bank-securing rods of Siemens’ No. 50 two-motion selectors.

No. 8

Double-ended spanner, 4.25" long, 1/8" thick. For nuts 5/8" and 7/16" across flats, which are fitted on Scales, Auto., No. 1.

No. 9

Single-ended spanner, 4" long, 3/16" thick.  Handle slightly offset.  For nuts 9/32" across flats, which are fitted to Siemens’ No. 5 and No. 16 uniselectors.

No. 10

Single-ended spanner, 3.5" long, 5/64" thick, for nuts 0.61" across flats. For the ward barrel of 20 character answer-back units of  Teleprinters No. 7.

No. 21
No. 22
No. 23
No. 24


BACK Home page BT/GPO Telephones A - Z Index Glossary of Telecom Terminology Quick Find All Telephone Systems

Last revised January 01, 2008

FM2