Elgin Grade 451 Parts

Arbors

	Part	Factory Part Number
	Arbors: Barrel	4313
	Arbors: Pallet	4014
	Arbors: Winding	4353

Clamps

	Part	Factory Part Number
	Clamps: Minute Wheel	4180
	Clamps: Setting Wheel	4180

Clutches

	Part	Factory Part Number
	Clutches: Wind and Setting	2741

Collets

	Part	Factory Part Number
	Collets: Hair Spring	2743

Hands

	Part	Factory Part Number
	Hands: Hour and Minute	1216s
	Hands: Second	1216s

Jewels

	Part	Factory Part Number
	Jewels: Balance: Cap: Lower	466
	Jewels: Balance: Cap: Upper	467
	Jewels: Balance: Hole: Lower	2926
	Jewels: Balance: Hole: Upper	2926
	Jewels: Center: Lower	2207
	Jewels: Center: Upper	2212
	Jewels: Escape: Hole: Lower	490
	Jewels: Escape: Hole: Upper	1370
	Jewels: Fourth: Lower	514
	Jewels: Fourth: Upper	1392
	Jewels: Pallet Jewel	556	Slow Train
	Jewels: Pallet: Cap: Lower	2202
	Jewels: Pallet: Cap: Upper	4404
	Jewels: Pallet: Hole: Lower	2250
	Jewels: Pallet: Hole: Upper	4402
	Jewels: Roller Jewel	2670	Double Roller
	Jewels: Third: Lower	1436
	Jewels: Third: Upper	1427

Levers

	Part	Factory Part Number
	Levers: Clutch	4184
	Levers: Clutch	4428
	Levers: Setting	4185

Nuts

	Part	Factory Part Number
	Nuts: Regulator	1548
	Nuts: Regulator Nut and Screw	2753

Pallets

	Part	Factory Part Number
	Pallets: And Fork With Stones	2974
	Pallets: Fork and Arbor with Stones	4305

Pinions

	Part	Factory Part Number
	Pinions: Bevel	4186
	Pinions: Cannon	4187
	Pinions: Cannon	2760
	Pinions: Center	2761
	Pinions: Escape	2762
	Pinions: Fourth	4188
	Pinions: Third	2763

Rollers

	Part	Factory Part Number
	Rollers: Safety	2650
	Rollers: Table: With Pin	2700
	Rollers: Table: Without Pin	2654

Screws

	Part	Factory Part Number
	Screws: Balance	2284
	Screws: Banking	2616
	Screws: Bridge: Barrel	2614
	Screws: Bridge: Pallet	2000
	Screws: Case	2630
	Screws: Clamp: Minute Wheel	2023
	Screws: Clamp: Setting Wheel	2023
	Screws: Click	4030
	Screws: Cock: Balance	2614
	Screws: Dial Foot	2438
	Screws: Index	2024
	Screws: Jewel: Balance: Lower	2950
	Screws: Jewel: Balance: Upper	2049
	Screws: Jewel: Center: Lower	2005
	Screws: Jewel: Center: Upper	1607
	Screws: Jewel: Escape: Upper	2049
	Screws: Jewel: Fourth: Upper	2049
	Screws: Jewel: Pallet: Clamp Upper	2617
	Screws: Jewel: Pallet: Lower	2950
	Screws: Jewel: Third: Upper	2049
	Screws: Lever: Clutch	1603
	Screws: Lever: Setting	4034
	Screws: Main	4031
	Screws: Plate Top	2614
	Screws: Spring: Click	2004
	Screws: Spring: Setting Lever	1603
	Screws: Stud Hair Spring	4029
	Screws: Wheel: Ratchet	2613

Springs

	Part	Factory Part Number
	Springs: Click	1897
	Springs: Hairspring	2993	Strength: 1
	Springs: Lever: Setting	4190
	Springs: Mainspring	2874	Strength: .0075

Staff

	Part	Factory Part Number
	Staff: Balance	4191	Combination Roller note: See notes on Balance Staffs in Special Information Section.
	Staff: Center	4192
	Staff: Center	2774

Studs

	Part	Factory Part Number
	Studs: Hair Spring	4303

Uncategorized

	Part	Factory Part Number
	Balance	2735
	Balance Complete	4744
	Barrel	4317
	Click	2742	Finish: A-5
	Dial	12s
	Index	2746
	Regulator	4189

Washers

	Part	Factory Part Number
	Washers: Main Screw	4193	Finish: B-5
	Washers: Staff Center	1555

Wheels

	Part	Factory Part Number
	Wheels: Center	1927
	Wheels: Center Complete	4194
	Wheels: Center Complete	2780
	Wheels: Escape	1490	Slow Train note: Two diameters of escape wheels have been made in 18, 16, and 6 sizes. The larger being known as New Style (N.S.) which will be supplied unless Old Style (O.S.) is ordered.
	Wheels: Escape and Pinion	4197	note: Two diameters of escape wheels have been made in 18, 16, and 6 sizes. The larger being known as New Style (N.S.) which will be supplied unless Old Style (O.S.) is ordered.
	Wheels: Fourth	2785
	Wheels: Fourth and Pinion	4198
	Wheels: Hour	4200
	Wheels: Hour	4666
	Wheels: Main	2799	Finish: A-5
	Wheels: Minute	2800
	Wheels: Ratchet	4349	Finish: A-1
	Wheels: Setting	2805
	Wheels: Third	2806
	Wheels: Third and Pinion	2807