PartsTable
Technical Data Sheet
1028789 ✓ Verified by PartsTable
3M · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The GASKET is a 3M industrial component. Key specifications include material: RUBBER CHLOROPRENE CLASS CR OR RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL, hole_diameter: 0.160 INCHES MINIMUM AND 0.166 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 1.750 INCHES NOMINAL IN, overall_length: 1.750 INCHES NOMINAL IN, hardness_rating: 45.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM OVERALL, style_designator: NON-CIRCULAR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-781-7870, 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
1028789
NSN: 5330-00-781-7870
FSC: 5330
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR OR RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
hole_diameter0.160 INCHES MINIMUM AND 0.166 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
overall_width1.750 INCHES NOMINAL IN
overall_length1.750 INCHES NOMINAL IN
hardness_rating45.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM OVERALL
style_designatorNON-CIRCULAR
aperture_diameter1.550 INCHES NOMINAL IN
bolt_hole_quantity4
elongation_percentage300 MAXIMUM
outside_corner_radius0.220 INCHES NOMINAL IN
cross-sectional_thickness0.021 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-00-781-7870
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1028789 MFR: 3M ⚠ 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
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH: 1.312 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
APERTURE DIAMETER: 1.550 INCHES NOMINAL IN
STYLE DESIGNATOR: NON-CIRCULAR
ELONGATION PERCENTAGE: 300 MAXIMUM
MATERIAL: RUBBER CHLOROPRENE CLASS CR OR RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-1149,TY 1,CL 1 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-R-2765 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
OUTSIDE CORNER RADIUS: 0.220 INCHES NOMINAL IN
BOLT HOLE QUANTITY: 4
TECHNICAL CHARACTERISTICS (FLIS)
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH1.312 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
APERTURE DIAMETER1.550 INCHES NOMINAL IN
STYLE DESIGNATORNON-CIRCULAR
ELONGATION PERCENTAGE300 MAXIMUM
MATERIALRUBBER CHLOROPRENE CLASS CR OR RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-1149,TY 1,CL 1 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-R-2765 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
OUTSIDE CORNER RADIUS0.220 INCHES NOMINAL IN
BOLT HOLE QUANTITY4
CROSS-SECTIONAL THICKNESS0.021 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH0.220 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
01-218Interchangeable
interchangeable cross-reference
interchangeable
02-218Interchangeable
interchangeable cross-reference
interchangeable
1W86AInterchangeable
interchangeable cross-reference
interchangeable
SCD1134Interchangeable
interchangeable cross-reference
interchangeable
25686Interchangeable
interchangeable cross-reference
interchangeable
1218Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 1028789?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 1028789?
1028789 is a GASKET manufactured by 3M.
What parts can replace 1028789?
There are 10 known substitutes for 1028789: 01-218, 02-218, 1W86A and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1028789?
1028789 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-781-7870. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 1028789