Sea Officers (gold insignia on gray background, gold hat bands)
Admiral (1864)		Lieutenant
	1-3/4"(1)		1-1/2"
Flag Officer		Master
	1-3/4"		1-1/2"
Captain		Passed Midshipman
	1-1/2"		1-1/2"
Commander		Midshipman	(none)
	1-1/2"		1-1/2"
Medical Officers
Surgeon of 12 years service		Passed Assistant Surgeon
	1-1/4"		1-1/4"
Surgeon of less than 12 years service		Assistant Surgeon
	1-1/4"		1-1/4"
Pay Officers
Paymaster of 12 years service		Assistant Paymaster
	1-1/4"		1-1/4"
Paymaster of less than 12 years service
	1-1/4"
Engineering Officers
Chief Engineer of 12 years service		1st Assistant Engineer
	1-1/4"		1-1/4"
Chief Engineer of less than 12 years service		2nd Assistant Engineer
	1-1/4"		1-1/4"
		3rd Assistant Engineer
			1-1/4"
Naval Constructors ((1864)
Naval Constructor of 12 years service		Naval Constructor of less than 12 years service
	1-1/4"		1-1/4"

Sea Officers (gold edging and stars on light blue background)
Admiral (1864)		Lieutenant
Flag Officer		Master
Captain		Passed Midshipman	(all gold)
Commander		Midshipman	(none)
Medical Officers (2) (gold insignia on black background)
Surgeon of 12 years service		Passed Assistant Surgeon
Surgeon of less than 12 years service		Assistant Surgeon
Pay Officers (gold insignia on dark green background)
Paymaster of 12 years service		Assistant Paymaster
Paymaster of less than 12 years service
Engineering Officers (3) (gold insignia on dark blue background)
Chief Engineer of 12 years service		1st Assistant Engineer (5)	(none)
Chief Engineer of less than 12 years service		2nd Assistant Engineer	(none)
		3rd Assistant Engineer	(none)
Naval Constructors ((1864) (gold insignia on buff background) (6)
Naval Constructor of 12 years service		Naval Constructor of less than 12 years service

Sea Officers
Admiral (1864)	Flag Officer	Captain	Commander	Lieutenant	Master	Passed Midshipman	Midshipman (4)
Medical Officers				Pay Officers
Surgeon, 12 yrs service	Surgeon, <12 yrs service	Passed Assistant Surgeon	Assistant Surgeon	Paymaster, 12 yrs service	Paymaster, < 12 yrs service	Assistant Paymaster
Engineering Officers
Chief Eng., 12 yrs service	Chief Eng., <12 yrs service	1st Assistant Engineer	2nd Assistant Engineer	3rd Assistant Engineer

Petty Officers' Cuff Insigniae
Boatswain’s Mate, Gunner’s Mate, Carpenter’s Mate, Master at Arms, Ship’s Steward, Cook		Quartermaster, Quarter-Gunner, Captain of the Forecastle, Captains of the Tops, Captain of the Afterguard, Armorer, Cooper, Ship’s Corporal, Captain of the Hold

USN A	USN B	USN C	USN D	USN E	CSN (all)	USMC (all)	CSMC (all)
1861- 7/13/62	8/1/1862- 5/23/63	5/24/64- 1/28/64	1/29/64- 1/14/65	1/15/65- 12/1/66	1861 Regs 1864 Adds

[1] Admiral's hat band height not specified in Regulations, assumed at least equal to that for Flag Officer.

[2] Medical officers’ and Paymasters’ shoulder straps are based on textual descriptions only, (e.g., “two sprigs of olive crossed,” “a single sprig of olive,” etc.); USN insigniae were used as the base for the illustrations shown.

[3] Engineering officers’ shoulder straps are based on textual descriptions only, (e.g., “two sprigs of oak crossed,” “); USN insigniae were used as the base for the illustrations shown. CSN Regulations do not mention straps for Assistant Engineers; these are based on analogy of Passed Assistant and Assistant Surgeons.

[4] Passed Midshipman has large cuff buttons, Midshipman medium cuff buttons.

[5] CSN Regulations make no mention of cuff devices for Assistant Engineers.

[6] CSN 1864 Regulations specify only that “Naval Constructors will wear the same uniform as Chief Engineers, substituting buff in the ground of the shoulder strap . . . and the letter “C” in the cap ornament . . .” Cuffs and hat bands are assumed to be identical with Engineers.