Part Number Ordering Information, example and explanation:
 
G311P813A100K00AE where,
G311P813
A
100K00
A
E
Goddard Designator
Temperature Characteristic
Resistance Value (Ohms) 
Tolerance
Performance Processing
 
G311P813 Resistor Characteristics
Power Rating @ 125°C
Maximum Working Voltage
Operating Temperature Range
Temperature Characteristic of Resistance
Minimum Resistance
Maximum Resistance
Tolerance
 
 
 
D
1 ohm
2.99 ohms
D, F
 
 
 
C
3 ohms
4.99 ohms
D, F
 
 
-55°C
C
5 ohms
9.99 ohms
B, D, F
0.3 W
300 Vdc
to
B, C
10 ohms
29.99 ohms
B, D, F
 
 
+125°C
B, C
30 ohms
99.99 ohms
V, T, Q, A, B, D, F
 
 
 
A, B, C
100 ohms
100 kohms
V, T, Q, A, B, D, F
 
Part number ordering options are developed using the following criteria:
Temperature Characteristic
Operating Temperature Range
Resistance Temperature Characteristic
(Referenced to +25°C)
A
-55°C to +125°C
±2.5 parts per million/°C
B
-55°C to +125°C
±5.0 parts per million/°C
C
-55°C to +125°C
±10.0 parts per million/°C
D
-55°C to +125°C
±20.0 parts per million/°C
 
Resistance Tolerance
Performance Processing Option 
V = ± 0.005%
 E = Current Noise, Voltage Coefficient and Thermal EMF
T = ± 0.01%
 N = No Special Inspection
Q = ± 0.02%
A = ± 0.05%
 
B = ± 0.1%
 
D = ± 0.5%
F = ± 1.0%
Resistance Values:
Resistance values in ohms are identified by six characters consisting of five digits and a letter. The letter is used simultaneously as a decimal point and as a multiplier. For resistance values:

a. Greater than or equal to 1 ohm but less than 1,000 ohms, the letter "R" is used to represent a decimal point.
b. Greater than or equal to 1,000 ohms but less than 1 megohm, the letter "K" is used to represent a decimal point.

Also, it is possible to order resistors with any resistance value within the minimum and maximum values shown in the tables herein. However, it is preferred that values be chosen from the standard values shown in the tables.