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

 

Solid Silicones and Associated AMS and Military Specifications
NOR-
SEAL
(COHR)
Duro-
meter
Ten-sile, PSIElong-ation, %Tear, PPIC-Set, 320°FAMS SpecA-A-59588
ZZ-R-765b
ZZ-R-765e
ZZ-R-
765/
15C
Notes
ASTM D395ASTM D412ASTM D412ASTM D624ASTM D395Class, GradeClass, Grade
300308005505015Molded 36″ x 36″ sheets, .188″ thick and greater
9030308505004015Rotocured 36″ wide continuous, general purpose
92353011508001503033483b,
Gr 30
-xxxF3Rotocured 36″ wide continuous, high strength
40040700400751533012a,2b,
Gr 40
-xxxC4Molded 36″ x 36″ sheets, .188″ thick and greater
904040900500801533012a,2b,
Gr 40
-xxxC4Rotocured 36″ wide continuous, general purpose
50050700350701533022a,2b,
Gr 50
-xxxC5Rotocured 36″ wide continuous, high strength
905050900400751533022a,2b,
Gr 50
-xxxC5Molded 36″ x 36″ sheets, .188″ thick and greater
92555012006001603033473b,
Gr 50
-xxxF5Rotocured 36″ wide continuous, general purpose
60060700200651533032a,2b,
Gr 60
-xxxC6Molded 36″ x 36″ sheets, .188″ thick and greater
906060700200502033032a,2b,
Gr 60
-xxxC6Rotocured 36″ wide continuous, general purpose
70070700160601533042a,2b,
Gr 70
-xxxC7Molded 36″ x 36″ sheets, .188″ thick and greater
907070750160652033042a,2b,
Gr 70
-xxxC7Rotocured 36″ wide continuous, general purpose

 

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

 

UL Flammability Specifications
Spec IDAlternateDescription
UL 94HBUL94 HB, UL94HB, UL 94 HBHorizontal Burn Test – slow burning on a horizontal swatch
UL 94V-0UL94 V-0, UL94V-0, UL94V-0, UL 94 V0, UL94 V0, UL94V0, UL 94V0Vertical Burn Test – burning stops within 10 seconds on a vertical swatch, no drips allowed
UL 94V-1UL94 V-1, UL94V-1, UL 94 V-1, UL 94 V1, UL94 V1, UL94V1, UL 94V1Vertical Burn Test – burning stops within 30 seconds on a vertical swatch, no drips allowed

 

IP Enclosure Specifications
Spec IDAlternateDescription
IP 5X (solids)IP5X, IP-5XFirst Digit Complete protection (dust protected)
IP 6X (solids)IP6X, IP-6XFirst Digit Complete protection (dust proof)
IP X0 (water)IPX0, IP-X0Second Digit No special protection required
IP X1 (water)IPX1, IP-X1Second Digit Water dripping/falling vertically (light rain)
IP X2 (water)IPX2, IP-X2Second Digit Water sprayed at an angle, up to 15 degrees from the vertical (light rain and wind)
IP X3 (water)IPX3, IP-X3Second Digit Spray water, any direction up to 60 degrees from the vertical (Heavy rain)
IP X4 (water)IPX4, IP-X4Second Digit Spray water from all directions, limited ingress permitted
IP X5 (water)IPX5, IP-X5Second Digit Low pressure water jets from all directions, limited ingress permitted (Hose down, non-commercial)
IP X6 (water)IPX6, IP-X6Second Digit High pressure jets from all directions, limited ingress permitted (Hose down, commercial)
IP X7 (water)IPX7, IP-X7Second 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 IDDescription
NEMA Type 1General purpose indoor use, no special protection.
NEMA Type 2Indoor use, protection against limited amounts of falling water and debris.
NEMA Type 3Outdoor use, to protect against windblown dust, rain, and sleet. To be unaffected by development of ice.
NEMA Type 3ROutdoor use, to protect against falling rain. To be unaffected by development of ice.
NEMA Type 3SOutdoor use, to protect against sleet. To be unaffected by development of ice.
NEMA Type 4Indoor or outdoor use, to protect against windblown dust and rain, splashing water, and hose down. To be unaffected by development of ice.
NEMA Type 4XSimilar to Type 4, plus protection against corrosion.
NEMA Type 6Indoor 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 IDDescription
ASTM D 6576New designation for cellular materials, replaces Mil-R-6130
ASTM D 1056 Type 1Open cell sponge rubber
ASTM D 1056 Type 2Closed cell sponge rubber
ASTM D 1056 Class ANon-oil resistant
ASTM D 1056 Class BOil resistant, low swell
ASTM D 1056 Class COil resistant, medium swell
ASTM D 1056 Class DExtreme temperature resistance
ASTM D 1056 Grade 0Compression Force Deflection less than 2 psi
ASTM D 1056 Grade 1Compression Force Deflection = 2 – 5 psi
ASTM D 1056 Grade 2Compression Force Deflection = 5 – 9 psi
ASTM D 1056 Grade 3Compression Force Deflection = 9-13 psi (for classes A, B, C) 9-15 psi (for class D)
ASTM D 1056 Grade 4Compression Force Deflection = 13-17 psi (for classes A, B, C) 15-22 psi (for class D)
ASTM D 1056 Grade 5Compression Force Deflection = 17-25 psi (for classes A, B, C) 22-30 psi (for class D)
ASTM D 1056 Test Suffix AHeat resistance
ASTM D 1056 Test Suffix bCompression set
ASTM D 1056 Test Suffix COzone or weather resistance
ASTM D 1056 Test Suffix DCompression deflection resistance
ASTM D 1056 Test Suffix EFluid resistance (Fuel B)
ASTM D 1056 Test Suffix FLow temperature resistance
ASTM D 1056 Test Suffix GTear resistance
ASTM D 1056 Test Suffix JAbrasion resistance
ASTM D 1056 Test Suffix KAdhesion resistance
ASTM D 1056 Test Suffix LWater absorption
ASTM D 1056 Test Suffix MFlammability resistance
ASTM D 1056 Test Suffix NImpact resistance
ASTM D 1056 Test Suffix PStaining resistance
ASTM D 1056 Test Suffix RResilience
ASTM D 1056 Test Suffix TTensile and Elongation
ASTM D 1056 Test Suffix WDensity
ASTM D 1056 Test Suffix ZAny special requirements

 

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