Standard nuts, washers etc.

Most fine threads on Ariel four strokes are to standards laid down by the Cycle Engineers Institute (CEI), usually known as ‘cycle thread’, which is usually 26 threads per inch (TPI) for all sizes but some manufacturers, like Ariel, used 20 TPI for 1/2″ threads and above. The other popular fine thread is BSF or British Standard Fine, which is not as fine as cycle except for 1/4″ when it is the same. BSF was used by Ariel in a few locations e.g. 1953 onwards side stand pivot bolt and for some strange reason VB and MK II SQ 4 head bolts. BSW (British Standard Whitworth) or Whit is the coarse thread usually only found in aluminium alloy. Ariel switched to UNF (Unified Fine) and UNC (Unified Coarse) for the Leader and Arrow but that, as they say is another story, or catalogue. Unified fastenings are the ones that use Imperial AF spanners; AF by the way stands for ‘Across Flats’ so metric spanners are also AF. All cycle nuts supplied by us are ‘machine nuts’ rather than forged. This method both produces a more original item as well as a stronger one. We offer a discount of 10% on purchases of 50, or 20% for a purchase of 100 or more of one type of nut or washer.

Part No

Description

Size

16/010

Standard nut 1BA

2-47

Standard nut 2BA

186130N

Standard nut 3BA-5/32 CEI

S1-1

Standard nut 3/16 CEI

2-1588

Standard nut 4BA

S21-2

Union nut for 5/16 pipe 1/4 BSP

5723-31

Standard nut 1/4 Whit

S1-2

Standard nut 1/4 x CEI

S1-2Q

Standard nut 1/4 x CEI

S2-2

Half nut 1/4 x CEI

S2-2Q

Half nut 1/4 x CEI

1-6032

Red hex 1/4 x CEI

10/3

Very red hex 1/4 x CEI

5187-37

Dome nut 1/4 x CEI

SP1/4

Nyloc 1/4 x CEI

14-1301

Nyloc 1/4 x UNF

14-1301Q

Nyloc 1/4 x UNF

UN1/4F

Full nut 1/4 x UNF

UN1/4FQ

Full nut 1/4 x UNF

UN1/4FDQ

Dome nut 1/4 x UNF

S1A-3

Standard nut 5/16 BSF

S1A-3Q

Standard nut 5/16 BSF

S1-3

Standard nut 5/16 x CEI

S1-3Q

Standard nut 5/16 x CEI

S2-3

Half nut 5/16 x CEI

S2-3Q

Half nut 5/16 x CEI

2157-30

Red hex 5/16 x CEI

2157-30Q

Red hex 5/16 x CEI

10226-54

Red hex, half nut 5/16 x CEI

67-3034

Red hex, thick 5/16 x CEI

42-4476

Nyloc nut 5/16 x CEI

210-53

Acorn nut 5/16 x CEI

210-53Q

Acorn nut 5/16 x CEI

5187-50

Dome nut 5/16 x CEI

UN1/5F

Full nut 5/16 x UNF

UN1/5FQ

Full nut 5/16 x UNF

UN1/5FNQ

Nyloc nut 5/16 x UNF

UN1/5FDQ

Dome nut 5/16 x UNF

S1A-4

Standard nut 3/8 BSF

S1A-4Q

Standard nut 3/8 BSF

S1-4

Standard nut 3/8 x CEI

S1-4Q

Standard nut 3/8 x CEI

S2-4

Half nut 3/8 x CEI

S2-4Q

Half nut 3/8 x CEI

67-75

Red hex 3/8 x CEI

42-4475

Nyloc nut 3/8 x CEI

940-38

Dome nut 3/8 x CEI

940-38Q

Dome nut SS 3/8 x CEI

UN1/6F

Full nut 3/8 x UNF

UN1/6FQ

Full nut 3/8 x UNF

UN1/6FNQ

Nyloc nut 3/8 x UNF

UN1/6FDQ

Dome nut 3/8 x UNF

12689-54

Standard nut 7/16 BSF

2-1925

Standard nut 7/16 x 20

15-152

Red hex 7/16 x 20

29-5839

LH thread 7/16 x 20

S1-5

Standard nut 7/16 x CEI

S1-5Q

Standard nut 7/16 x CEI

S2-5

Half nut 7/16 x CEI

S2-5Q

Half nut 7/16 x CEI

UN1/7FNQ

Nyloc nut 7/16 x UNF

S1-6

Standard nut 1/2 x 20

S1-6Q

Standard nut 1/2 x 20

S2-6

Half nut 1/2 x 20

S2-6Q

Half nut 1/2 x 20

65-3391

Thin nut 1/2 x CEI

10558-54

Red hex, half nut 1/2 x 20

4655-26Q

Red hex, thin 1/2 x 20

S2-7L

Half nut, LH thread 9/16 x 20

10429-54

Half Red nut, LH thread 9/16 x 20

24-4255

Thin nut 9/16 x 20

UN1/9FQ

Full nut 5/8 x UNF

Part No

Description

Size

S19-1

Plain washer

3/16

29-3319

Shakeproof washer, external

3/16

S19-2

Plain washer

1/4

S19-2Q

Plain washer Stainless

1/4

S5-2

Shakeproof washer

1/4

2-1462

Spring washer

1/4

S19-3

Plain washer

5/16

S19-3Q

Plain washer Stainless

5/16

Part No

Description

Size

S5-3

Shakeproof washer

5/16

24-8784

Spring washer

5/16

S6-3

Thackery washer

5/16

S19-4

Plain washer

3/8

S19-4Q

Plain washer Stainless

3/8

S5-4

Shakeproof washer

3/8

2-522

Spring washer

3/8

S6-4

Thackery washer

3/8

S19-5

Plain washer

7/16

S19-5Q

Plain washer Stainless

7/16

2-1945

Plain washer, thin

7/16

S5-5

Shakeproof washer

7/16

82-9034

Spring washer, square section

7/16

15-716

Spring washer, flat

7/16

S6-5

Thackery washer

7/16

S19-6

Plain washer

1/2

S19-6Q

Plain washer Stainless

1/2

S5-6

Shakeproof washer

1/2

S6-6

Thackery washer

1/2

S19-7

Plain washer Stainless

9/16

S5-7

Shakeproof washer

9/16

S19-8

Plain washer Stainless

5/8

Part No

Description

Size

S9-1

Ball bearing 3/16

S9-1A

Ball bearing 7/32

S9-2

Ball bearing 1/4

S9-3

Ball bearing 5/16

S9-4

Ball bearing 3/8

60-2368

Ball bearing 3/8

S3-2X2

Roller bearing 1/4 x 1/4

24-375

Roller bearing 1/4 x 5/16

S3-3X3

Roller bearing 5/16 x 5/16

3241-31

Roller bearing 3/16×3/16

S3-1X6

Roller bearing 3/16×1/2

S3-1X7+2

Roller bearing 3/16×9/16 +.002

T527

Roller bearing 1/4 x 15/64

S3-2X4

Roller bearing 1/4×3/8

S3-2X5

Roller bearing 3/8×3/8

S3-3X15.8

Roller bearing 3×15.8 mm

S3-4X10

Roller bearing 4×10 mm

S3-4X13

Roller bearing 4×13 mm

S3-5X5

Roller bearing 5×5 mm

S3-6X12

Roller bearing 6×12 mm

S3-1AX5

Roller bearing 7/32×7/16

S3-1AX1A

Roller bearing 7/32×7/32

S3-8X8

Roller bearing 8×8 mm

Part No

Description

Size

001

Grease nipple, straight

1/4″

002

Grease nipple, angled

 1/4″

003

Grease nipple, angled

3/8″

004

Grease nipple, straight

3/8″

4/060

Split pin

1/32 x 1”

S17-1

Split pin

1/16 x 5/8

S17-3

Split pin

3/32 X 1

S17-4

Split pin

1/8 X 1 1/4

S18-1

No3 Woodruff key

1/8×1/2x.117

2-36

Woodruff key,

7/16x.16”x.2”

14/042

Union nut for ¼ & 5/16 pipe

1/4 BSP

14/042A

Union nut for ¼ pipe

1/4 BSP

S21-3

Spigot, 5/16 oil pipe for 14/042 nut

S21-4

Spigot, ¼ oil pipe for 14/042 nut

S21-5

Spigot, ¼ oil pipe for 14/042A nut

S48-2

Joint pin for brake rods

1/4 x .650

S48-3

Joint pin with extension for brake light switch spring

¼ x .650

S48-3Q

As above but Stainless

¼ x .650

Part No Description Size
All pipe and hose is priced per inch, part number of suitable hose clip is in ()
PIP-10 Plain black oil/fuel pipe (5897-93)

3/16

PIP-12 Clear pipe (5897-93)

1/4

PIP-13 Plain black oil/fuel pipe(5897-93)

1/4

PIP-15 Plain black oil pipe (5897-95)

5/16

PIP-16 Cloth covered oil pipe (5897-35)

5/16

PIP-18 Plain black oil pipe (5897-37)

3/8

PIP-19 Cloth covered oil pipe (5897-95)

3/8

PA-43 Antiwet sumping valve, push-on

1/4

PA-44 Antiwet sumping valve, push-on

5/16

These hose clips are not the ‘Jubilee’ worm drive type but a more period type with a small screw and nut.
5897-97 Hose clip

8-10 mm

5897-93 Hose clip

10-12 mm

5897-35 Hose clip

12-14 mm

5897-95 Hose clip

14-16 mm

5897-37 Hose clip

16-18 mm

140-88 Copper pipe

1/8” OD

140-89 Copper pipe

3/16” OD

140-96 Copper pipe

1/4” OD

140-90 Copper pipe

5/16” OD

5075-89 Copper pipe

3/8” OD

Part No

Description

Size

FSR1/4×5/16 Universal or Truss head rivet

1/4 x 5/16

FSR1/4×3/4

Universal or Truss head rivet

 1/4 x 3/4

4460-96

Hammerdrive rivet

6G x 7mm

4080-09

Alloy rivet

3 x 8

4108-26

Rivet, countersunk

1/2 x 1/8

10568A

Rivet, countersunk

3/16 x 1

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