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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.


291 Cleveland St,  Orange,  New Jersey  07050  USA
Mailing Address:  P.O. Box 280,  Orange,  New Jersey  07051-0280  USA

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