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Metric Insulating Washer
Technical / Engineering Data
Metric insulating Washers       Metric e-Catalog


Length of Shoulder (For Shoulder Washers Only)
Choose & write down your
length of shoulder code.
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Dimension E

Order Code Dimension E
(see diagram in
insulating washers charts)

A

1mm

.039

B

2mm

.078

C

3mm

.118

D

4mm

.157

E

5mm

.196

F

6mm

.236

G

7mm

.275

H

8mm

.315

J

9mm

.354

K

10mm

.393

M

11mm

.433

R

12mm

.472

S

13mm

.511

 
Material Selection

  MATERIALS

Choose & write down your material code.
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SPECIFICATIONS

  Nylon

N

 Mil- P - 17091B Type 1

  Teflon®

T

 Mil- P - 19468A

  Lexan®

L

 LP- 393 A

  Ultem®

U

 GE 1000 Resins

  Delrin®

D

 LP- 392 A

  Phenolic

P  MIL- I - 24768 / 15


    RoHS Compliance Statement  I  R.E.A.C.H. Statement  I  DFARS  I  WEEE
Conflict-Free Minerals Statement  I  Harmonized Tariff Codes
 WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

 
Properties for Non- Metallic Materials

Properties

Phenolic Teflon® Nylon Lexan®

Delrin®

Ultem®

 Flammability Rating V-1 UL HB UL 94V-2 V-O UL94HB V-O
 Water Absorption
 (%) 24 hrs.
0.6 - 0.7 .02 1.5 0.15 0.25 0.25
 Dielectric Constant
 (60 cycles)
5.2 - 5.3 2.1 10 2.9 3.7 3.15
 Dielectric Strength
 1/8 thickness (v/mil)
350 400 300- 400 380 500 N/A
 Arc Resistance (sec) 100 200 140 10 129 120
 Tensile Strength (psi) 6,500- 7,000 2,700- 3,100 11,200- 16,500 9,000 10,400 16,500
 Heat Resistance
 (continuous degrees F)
250- 275 550 250 270 250 340
 Compression Strength (psi) 201- 235 700- 1,200 4,000 - 11,000 12,500 18,000 22,000
 
Tolerances (For Shoulder Washers Only)

A

Major Diameter

± 0.15

B

Shank Diameter

+ 0.00 / - 0.15

C

Thickness of Head

± 0.15

D

Inside Diameter

+ 0.17  / - 0.00

E

Length of Shoulder

± 0.15

L

Overall Length

+ 0.26  / - 0.15

 
Tolerances (For Flat Washers Only)

A

Major Diameter

 + 0.26  / - 0.15

C

Thickness

.4  through 1.6  ±  .16
1.7  through  2.4  ±  .23

D

Inside Diameter

+ .26  / - .00

For Modified Parts or Engineering Assistance:
Unicorp offers your firm engineering and design services for customized or
modified parts at no additional charge. Please call our Engineering Department.
UNICORP, MFR. IDENT. Code No. 04729

Phone:  973-674-1700        Toll Free:  1-800-526-1389        Fax:  973-674-3803


UNICORP is a leader in manufacturing stock and custom
electronic hardware, handles and precision fasteners used by leading companies
in nearly every industry since 1971.


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Mailing Address:  P.O. Box 280,  Orange,  New Jersey  07051-0280  USA

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