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Arched mainspring housing, 15 LPI
ITEM #: PS1312
Arched mainspring housing, 17.5 LPI
ITEM #: PS1313
Arched mainspring housing, 20 LPI
ITEM #: PS1316
Arched mainspring housing, 25 LPI
ITEM #: PS1318
Arched mainspring housing, 30 LPI
ITEM #: PS1317
Arched mainspring housing, serrated
ITEM #: PS1315
Flat mainspring housing, 15 LPI
ITEM #: PS1319
Flat mainspring housing, 17.5 LPI
ITEM #: PS1321
Flat mainspring housing, 20 LPI
ITEM #: PS1320
Flat mainspring housing, 25 LPI
ITEM #: PS1322
Flat mainspring housing, 30 LPI
ITEM #: PS1325
Flat mainspring housing, serrated
ITEM #: PS1330
Mainspring, chrome silicon, 19 lb
ITEM #: PS1300
Mainspring housing cap
ITEM #: PS1305
Mainspring housing cap pin
ITEM #: PS1310
Mainspring housing retainer
ITEM #: PS1355
Mainspring housing retainer pin
ITEM #: PS1360
Mainspring housing retainer pin, stainless
ITEM #: PS1365S