Smith & Wesson Hand Ejector parts

Updated 4-24-13

The illustration below is of the S&W 1905-4th Change .38 M&P revolver from a late 1930s vintage S&W parts catalog. This shows the 2nd type (winged) hammer block safety, the hand for which (K40) is for sale on this page.

Part# Part name

K1

Barrel

K2

Barrel pin

K3

Locking bolt

K4

Locking bolt spring

K5

Cylinder

K6

Extractor

K7

Extractor spring

K8

Extractor rod

K9

Extractor collar

K10

Center pin

K11

Center pin spring

K12

Yoke

K12a Yoke stop
K12b Yoke stop spring

K13

Stirrup pin

K14

Sear pin

K15

frame

K16

Frame lug

K17

Stock pin

K18

Hammer stud

K19

Trigger stud

K20

Cyl. stop stud

K21

Reb. Slide stud

K22

sideplate

K23

Plate screw, lg head

K24

Plate screw, sm head

K24a

Plate screw, flat head

K25

Bolt

K26

Locking bolt pin

K27

Bolt plunger spring

K28

Bolt plunger

K29

Thumbpiece

K30

Thumbpiece nut

K31

Hammer

K32

Hammer nose

K33

Hammer nose rivet

K34

Stirrup

K35

Sear

K36

Sear spring

K37

Trigger

K38

Hand lever

K39

Hand lever spring

K40

Hand

K41

Trigger lever

K42

Rebound slide

K43

Rebound spring

K44

Cylinder stop

K45

Stop plunge

K46

Stop spring

K47

Stop screw

K48

Mainspring

K49

Strain screw

K50

Stock screw

K51.2

Stocks

K53

Hammer block

K54

Butt swivel

K55

Butt swivel pin

 

Smith & Wesson early K-frame models, identified by caliber/serial number
32/20 Hand Ejector First Model (1899), manufactured 1899-1902, serial numbers 1-5,331.
32/20 Hand Ejector Second Model (1902), manufactured 1902-1903, serial numbers 5,332-9,811.
32/20 Hand Ejector Model 1902 1st change, manufactured 1903-1905, serial numbers 9,812-18,125.
32/20 Hand Ejector Model 1905, manufactured 1905-1906, serial numbers 18,126-22,426.
32/20 Hand Ejector Model 1905 1st change, manufactured 1906-190?*, serial numbers 22,427-33,500*.
* factory records to do show exactly when 1905 1st change ended and 2nd change began.
32/20 Hand Ejector Model 1905 2nd change, manufactured 190?*-1909, serial numbers 33,501*-45,200.
32/20 Hand Ejector Model 1905 3rd change, manufactured 1909-1915, serial numbers 45,201-65,700.
32/20 Hand Ejector Model 1905 4th change, manufactured 1915-1940, serial numbers 65,701-144,684.
 
.38 Hand Ejector First Model (1899), manufactured 1899-1902, serial numbers 1-20,975.
.38 Hand Ejector 2nd Model (1902), manufactured 1903-1905, serial numbers 20,976-33,803.
.38 Hand Ejector Model 1902 1st change, manufactured 1902-1903, serial numbers 33,804-62,449.
.38 Hand Ejector Model 1905, manufactured 1905-1906, serial numbers 62,450-73,250.
.38 Hand Ejector Model 1905 1st change, manufactured 1906-190?*, serial numbers 73,251-.
* factory records do not show exactly when 1905 1st change ended and 2nd change began.
.38 Hand Ejector Model 1905 2nd change, manufactured 190?-1909*, serial numbers -146,899.
.38 Hand Ejector Model 1905 3rd change, manufactured 1909-1915, serial numbers 146,900-241,703.
.38 Hand Ejector Model 1905 4th change, manufactured 1915-1942, serial numbers 241,703-see notes 1905 4th change.
K-22 1st Model Outdoorsman, 19,500 manufactured 1930-1940, between serial numbers 632,132 - 682,419 in the .38 Hand Ejector series.
K-22 2nd Model Masterpiece, 1,067 manufactured 1940-1942, between serial numbers 682,420 - 696,952 in the .38 Hand Ejector series.
K-32 Hand Ejector First Model, 83 manufactured 1936-1941, between serial numbers 653,388-682,207 in the .38 Hand Ejector series.

Below: Illustration from an old S&W parts catalog: 1st Model M or Ladysmith s/n 1-4575

Below: Illustration from an old S&W parts catalog: 3rd Model M or Ladysmith
Second model Ladysmith (not shown) s/n 4576-13,950 uses action of first model with extractor system and underlug of the third model.
Third Model (shown) Ladysmith (Model M or M frame) s/n 13,951-26,154