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
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
aperture_diameter
1.550 INCHES NOMINAL IN
bolt_hole_quantity
4
elongation_percentage
300 MAXIMUM
outside_corner_radius
0.220 INCHES NOMINAL IN
cross-sectional_thickness
0.021 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN
cross-sectional_shape_style
SOLID SINGLE OR COMPOSITION
NSN
5330-00-781-7870
COMPONENT DIAGRAM
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 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
CROSS-SECTIONAL THICKNESS
0.021 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH
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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.
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