umn 10b. Indicates the reference designation used to
e. Quantity Incorporated in Unit, Column 5. This
column indicates the quantity of the item used in
identify the item.
the AN/GSM-65. A "V" appearing in this column in
lieu of a quantity indicates that a definite quantity
cannot be indicated (e.g., shims, spacers, etc.).
a. Repair parts mortality is computed from failure
Subsequent appearances of the same item in the same
rates derived from experience factors with the indiv-
assembly are indicated by the letters "REF."
idual parts in a variety of equipments. Variations in
the specific application and periods of use of elec-
f. 90-Day GS Maintenance Allowances, Column 7.
tronics equipment, the fragility of electronic piece
NOTE
Allowances in GS column are for GS main-
parts, plus intangible material and quality factors
intrinsic to the manufacture of electronic parts, do
tenance only.
not permit mortality to be based on hours of end
(1) The allowance columns are divided into three
subcolumns. Indicated in each subcolumn, opposite
item use. However, long periods of continuous use
under adverse conditions are likely to increase repair
the first appearance of each item, is the total quantity
of items authorized for the number of equipments
parts mortality.
supported. Subsequent appearances of the same item
b. The following publications pertain to the AN/
will have the letters "REF" in the applicable allow-
GSM-65.
TM 11-6625-680-15-1
ance columns. Items authorized for use as required
Operator's Organizational,
DS, GS, and Depot Main-
but not for initial stockage are identified with an
asterisk in the allowance column.
tenance Manual: Test
(2) The quantitative allowances for GS level of
maintenance will represent initial stockage for a
AN/GSM-65 (Ram Meter
Inc. Type L-1A)
30-day period for the number of equipments sup-
TM 11-6625-680-20P-1
Organizational Mainte-
ported.
nance Repair Parts and
(3) Determination of the total quantity of parts
required for maintenance of more than 100 of these
and Special Tools Lists:
equipments can be accomplished by converting the
Test Set, Motor-Genera-
equipment quantity to a decimal factor by placing a
tor AN/GSM-65 (Ram
Meter Inc. Type L-1A)
decimal point before the next to last digit of the num-
ber to indicate hundredths, and multiplying the deci-
5. Location of Repair
Parts
mal factor by the parts quantity authorized in the
a This appendix contains two cross-reference in-
51-100 allowance column. Example, authorized allow-
ance for 51-100 equipments is 40, for 150 equipments
part when either the Federal stock number, refer-
multiply 40 by 1.50 or 60 parts required.
ence number (manufacturer's part number), or refer-
g. 1-Year Allowances Per 100 Equipments/Con-
ence designation is known. The first column in each
tingency Planning Purposes, Column 8. This column
index is prepared in numerical and/or alpha-numeric
indicates opposite the first appearance of each item
sequence in ascending order. Where a Federal stock
the total quantity required for distribution and
number is not listed, refer to the reference number
contingency planning purposes. The range of items
(manufacturer's part number) immediately following
indicates total quantities of all authorized items re-
the Federal stock number,
quired to provide for adequate support of 100 equip-
b. When the Federal stock number is known, follow
ments for 1 year.
the procedures given in (1) and (2) below.
h. Depot Maintenance Allowance Per 100 Equip-
(1) Refer to the index of Federal stock numbers
ments, Column 9. This column indicates opposite
(sec. IV) and locate the Federal stock number. The
the first appearance of each item, the total quantity
FSN is cross-referenced to the applicable figure and
authorized for depot maintenance of 100 equip-
reference designation.
ments. Subsequent appearances of the same item will
(2) When the reference designation is determined,
have the letters "REF" in the allowance column.
refer to the reference designation index (sec. V). The
Items authorized for use as required but not for ini-
reference designations are listed in numeric-alpha
tial stockage are identified with an asterisk in the
allowance column.
ascending order and are cross-referenced to the page
number on which they appear in the repair parts
i. Illustration, Column 10. This column is divided
list (sec. II). Refer to the page number noted in the
as follows:
index and locate the reference designation (col. 10b).
(1) Figure Number, Column 10a, Not applicable.
(2) Item Number or Reference Designation, Col-
If the word "REF" appears in the allowance column