Stockwell Elastometrics logo
Stockwell Elastometrics Blog  Stockwell Elastometrics on LinkedIn  Stockwell Elastometrics on Twitter  Stockwell Elastometrics on Facebook  Stockwell Elastometrics on YouTube  Stockwell Elastometrics on Google+  
Home > Tech Tips > Specifications Reference Overview

Specifications Reference Overview

Stockwell Elastomerics provides these specifications reference tables for common standards such as Military specifications (Mil specs), AMS, UL Flammability, IP Enclosure, NEMA Enclosure and ASTM specifications. This specification list is for reference only; refer to the actual specification for details and updated information

Military Specifications (MIL Specs)
Spec ID Alternate Description
A-A-59588 AA59588,
A A 59588
New commercial description overview for silicone rubber items
ZZ-R-765 ZZR765,
ZZ R 765
Class 1 Extreme low temperature phenyl base silicone
ZZ-R-765 ZZR765,
ZZ R 765
Class 2 General purpose, low compression set methyl-vinyl silicone
ZZ-R-765 ZZR765,
ZZ R 765
Class 3 High flex, high tear strength grades of methyl-vinyl silicone
Mil-R-6130 MilR6130,
Mil R 6130
See ASTM D6576 (below)

Solid Silicones and Associated AMS and Military Specifications
COHR Duro-
meter
Ten-sile, PSI Elong-ation, % Tear, PPI C-Set, 320°F AMS Spec A-A-59588
ZZ-R-765b
ZZ-R-765e
ZZ-R-
765/
15C
Notes
  ASTM D395 ASTM D412 ASTM D412 ASTM D624 ASTM D395   Class, Grade Class, Grade  
COHR 300 30 800 550 50 15       Molded 36" x 36" sheets, .188" thick and greater
COHR 9030 30 850 500 40 15       Rotocured 36" wide continuous, general purpose
COHR 9235 30 1150 800 150 30 3348 3b,
Gr 30
-xxxF3 Rotocured 36" wide continuous, high strength
COHR 400 40 700 400 75 15 3301 2a,2b,
Gr 40
-xxxC4 Molded 36" x 36" sheets, .188" thick and greater
COHR 9040 40 900 500 80 15 3301 2a,2b,
Gr 40
-xxxC4 Rotocured 36" wide continuous, general purpose
COHR 500 50 700 350 70 15 3302 2a,2b,
Gr 50
-xxxC5 Rotocured 36" wide continuous, high strength
COHR 9050 50 900 400 75 15 3302 2a,2b,
Gr 50
-xxxC5 Molded 36" x 36" sheets, .188" thick and greater
COHR 9255 50 1200 600 160 30 3347 3b,
Gr 50
-xxxF5 Rotocured 36" wide continuous, general purpose
COHR 600 60 700 200 65 15 3303 2a,2b,
Gr 60
-xxxC6 Molded 36" x 36" sheets, .188" thick and greater
COHR 600 60 700 200 65 15 3303 2a,2b,
Gr 60
-xxxC6 Molded 36" x 36" sheets, .188" thick and greater
COHR 9060 60 700 200 50 20 3303 2a,2b,
Gr 60
-xxxC6 Rotocured 36" wide continuous, general purpose
COHR 700 70 700 160 60 15 3304 2a,2b,
Gr 70
-xxxC7 Molded 36" x 36" sheets, .188" thick and greater
COHR 9070 70 750 160 65 20 3304 2a,2b,
Gr 70
-xxxC7 Rotocured 36" wide continuous, general purpose
COHR 9275 70 1200 350 150 30 3349 3b,
Gr 70
-xxxF7 Rotocured 36" wide continuous, high strength

AMS Specifications
Spec ID Description
AMS 3301 General purpose, 40 durometer silicone
AMS 3302 General purpose, 50 durometer silicone
AMS 3303 General purpose, 60 durometer silicone
AMS 3304 General purpose, 70 durometer silicone
AMS 3323 Fluorosilicone sponge, closed cell
AMS 3347 High strength, 50 durometer silicone rubber
AMS 3348 High strength, 30 durometer silicone rubber
AMS 3349 High strength, 70 durometer silicone rubber

UL Flammability Specifications
Spec ID Alternate Description
UL 94HB UL94 HB, UL94HB, UL 94 HB Horizontal Burn Test - slow burning on a horizontal swatch
UL 94V-0 UL94 V-0, UL94V-0, UL94V-0, UL 94 V0, UL94 V0, UL94V0, UL 94V0 Vertical Burn Test - burning stops within 10 seconds on a vertical swatch, no drips allowed
UL 94V-1 UL94 V-1, UL94V-1, UL 94 V-1, UL 94 V1, UL94 V1, UL94V1, UL 94V1 Vertical Burn Test - burning stops within 30 seconds on a vertical swatch, no drips allowed

IP Enclosure Specifications
Spec ID Alternate Description
IP 5X (solids) IP5X, IP-5X First Digit Complete protection (dust protected)
IP 6X (solids) IP6X, IP-6X First Digit Complete protection (dust proof)
IP X0 (water) IPX0, IP-X0 Second Digit No special protection required
IP X1 (water) IPX1, IP-X1 Second Digit Water dripping/falling vertically (light rain)
IP X2 (water) IPX2, IP-X2 Second Digit Water sprayed at an angle, up to 15 degrees from the vertical (light rain and wind)
IP X3 (water) IPX3, IP-X3 Second Digit Spray water, any direction up to 60 degrees from the vertical (Heavy rain)
IP X4 (water) IPX4, IP-X4 Second Digit Spray water from all directions, limited ingress permitted
IP X5 (water) IPX5, IP-X5 Second Digit Low pressure water jets from all directions, limited ingress permitted (Hose down, non-commercial)
IP X6 (water) IPX6, IP-X6 Second Digit High pressure jets from all directions, limited ingress permitted (Hose down, commercial)
IP X7 (water) IPX7, IP-X7 Second Digit Temporary immersion, 15 cm to 1m (Shallow immersion)

IP = Ingress Protection from objects and moisture
Examples:
IP 66, IP66 Dust-proof, high pressure jets from all directions
IP 67, IP67 Dust-proof, temporary immersion (shallow, up to 1m)
IP 68, IP68 Dust-proof, permanent immersion, under pressure

NEMA Enclosure Specifications
Spec ID Description
NEMA Type 1 General purpose indoor use, no special protection.
NEMA Type 2 Indoor use, protection against limited amounts of falling water and debris.
NEMA Type 3 Outdoor use, to protect against windblown dust, rain, and sleet. To be unaffected by development of ice.
NEMA Type 3R Outdoor use, to protect against falling rain. To be unaffected by development of ice.
NEMA Type 3S Outdoor use, to protect against sleet. To be unaffected by development of ice.
NEMA Type 4 Indoor or outdoor use, to protect against windblown dust and rain, splashing water, and hose down. To be unaffected by development of ice.
NEMA Type 4X Similar to Type 4, plus protection against corrosion.
NEMA Type 6 Indoor or outdoor use, to protect against entry of water during temporary, shallow submersion. To be unaffected by development of ice.

NEMA = National Electrical Manufacturers Association

ASTM Specifications
Spec ID Description
ASTM D 6576 New designation for cellular materials, replaces Mil-R-6130
ASTM D 1056 Type 1 Open cell sponge rubber
ASTM D 1056 Type 2 Closed cell sponge rubber
ASTM D 1056 Class A Non-oil resistant
ASTM D 1056 Class B Oil resistant, low swell
ASTM D 1056 Class C Oil resistant, medium swell
ASTM D 1056 Class D Extreme temperature resistance
ASTM D 1056 Grade 0 Compression Force Deflection less than 2 psi
ASTM D 1056 Grade 1 Compression Force Deflection = 2 - 5 psi
ASTM D 1056 Grade 2 Compression Force Deflection = 5 - 9 psi
ASTM D 1056 Grade 3 Compression Force Deflection = 9-13 psi (for classes A, B, C) 9-15 psi (for class D)
ASTM D 1056 Grade 4 Compression Force Deflection = 13-17 psi (for classes A, B, C) 15-22 psi (for class D)
ASTM D 1056 Grade 5 Compression Force Deflection = 17-25 psi (for classes A, B, C) 22-30 psi (for class D)
ASTM D 1056 Test Suffix A Heat resistance
ASTM D 1056 Test Suffix b Compression set
ASTM D 1056 Test Suffix C Ozone or weather resistance
ASTM D 1056 Test Suffix D Compression deflection resistance
ASTM D 1056 Test Suffix E Fluid resistance (Fuel B)
ASTM D 1056 Test Suffix F Low temperature resistance
ASTM D 1056 Test Suffix G Tear resistance
ASTM D 1056 Test Suffix J Abrasion resistance
ASTM D 1056 Test Suffix K Adhesion resistance
ASTM D 1056 Test Suffix L Water absorption
ASTM D 1056 Test Suffix M Flammability resistance
ASTM D 1056 Test Suffix N Impact resistance
ASTM D 1056 Test Suffix P Staining resistance
ASTM D 1056 Test Suffix R Resilience
ASTM D 1056 Test Suffix T Tensile and Elongation
ASTM D 1056 Test Suffix W Density
ASTM D 1056 Test Suffix Z Any special requirements

Contact Stockwell Elastomerics

Contact Us for further assistance in meeting military specifications (Mil specs), AMS, UL Flammability, IP Enclosure, NEMA Enclosure and ASTM specifications.