12
Saw Chain
CHAIN DRIVE-LINK NUMBER IDENTIFICATION
Nearly all Oregon
®
chains are named by a part
number made up of a number (see below), and
letters (see pages 13-14).
Oregon
®
Part-number Examples: 27A, 72LP, 91VG,
M72LP
First, note the numbers:
27 A, 72 LP, 91 VG, M72 LP
These numbers are stamped on the chain’s drive
links and indicate the physical size of the chain
(pitch and gauge).
CHAIN
PITCH GAUGE
NUMBER
11 3/4" .122"
16 .404" .063"
18 .404" .080"
20 .325" .050"
21 .325" .058"
22 .325" .063"
25 1/4" .050"
27 .404" .063"
33 .325" .050"
34 .325" .058"
35 .325" .063"
50 .404" .050"
51 .404" .058"
52 .404" .063"
58 .404" .058"
59 .404" .063"
72 3/8" .050"
73 3/8" .058"
75 3/8" .063"
90 3/8" Low Profile .043"
91 3/8" Low Profile .050"
95 .325" .050"
÷2
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