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AS3085-156 — PACKING,PREFORMED,A

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

AS3085-156: PACKING,PREFORMED,A.

The PACKING,PREFORMED,A is a the manufacturer industrial component. Key specifications include material: RUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM OVERALL, temp_rating: -5.0 CELSIUS AND 205.0 CELSIUS DEGC, hardness_rating: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM OVERALL, operating_medium: FLUID, HIGH TEMPERATURE, peripheral_diameter: 4.407 INCHES MINIMUM AND 4.479 INCHES MAXIMUM IN, center_hole_diameter: 4.207 INCHES MINIMUM AND 4.267 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-283-5679, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
AS3085-156
NSN: 5330-01-283-5679
NIINs: 012835679, 014638683
FSC: 5330 — Packing and Gasket Materials
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialRUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM OVERALL
temp_rating-5.0 CELSIUS AND 205.0 CELSIUS DEGC
hardness_rating70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM OVERALL
operating_mediumFLUID, HIGH TEMPERATURE
peripheral_diameter4.407 INCHES MINIMUM AND 4.479 INCHES MAXIMUM IN
center_hole_diameter4.207 INCHES MINIMUM AND 4.267 INCHES MAXIMUM IN
cross-sectional_height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
type/model_designationRB199MK101/103/104
end_item_identification2840-99-645-9394; 2840-99-645-9395; 2840-99-766-0507; 2840-99-766-0508
cross-sectional_shape_styleO-RING
cross_section_outside_diameter0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
material_document_and_classificationAMS7280 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM D2000/SAE J200 2HK715A1-10B37B38EF31EO78F18Z1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-283-5679
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS3085-156 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
TEMP RATING: -5.0 CELSIUS AND 205.0 CELSIUS DEGC
•
OPERATING MEDIUM: FLUID, HIGH TEMPERATURE
•
CROSS-SECTIONAL HEIGHT: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
•
HARDNESS RATING: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS7280 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM D2000/SAE J200 2HK715A1-10B37B38EF31EO78F18Z1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: O-RING
•
PERIPHERAL DIAMETER: 4.407 INCHES MINIMUM AND 4.479 INCHES MAXIMUM IN
•
COLOR: BROWN
TECHNICAL CHARACTERISTICS
TEMP RATING-5.0 CELSIUS AND 205.0 CELSIUS DEGC
OPERATING MEDIUMFLUID, HIGH TEMPERATURE
CROSS-SECTIONAL HEIGHT0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
HARDNESS RATING70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS7280 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM D2000/SAE J200 2HK715A1-10B37B38EF31EO78F18Z1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLEO-RING
PERIPHERAL DIAMETER4.407 INCHES MINIMUM AND 4.479 INCHES MAXIMUM IN
COLORBROWN
CENTER HOLE DIAMETER4.207 INCHES MINIMUM AND 4.267 INCHES MAXIMUM IN
CROSS SECTION OUTSIDE DIAMETER0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 2
2-156 V747-75Reference document
Same NSN cross-reference
Reference document — Secondary reference
V0747 2-156Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AS3085-156?
AS3085-156 is a PACKING,PREFORMED,A.
What parts can replace AS3085-156?
There are 2 known substitutes for AS3085-156: 2-156 V747-75, V0747 2-156. Substitute compatibility should be verified for your specific system.
What is the NSN for AS3085-156?
AS3085-156 is cataloged in the U.S. Government catalog under NSN 5330-01-283-5679. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.