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Technical Data Sheet
PartsTable / COMPONENT / RA6428
RA6428 ✓ Verified by PartsTable
— · 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 the manufacturer industrial component. Key specifications include material: STEEL COMP 1010, head_height: 0.125 INCHES NOMINAL IN, overall_height: 0.344 INCHES NOMINAL IN, prong_quantity: 12, style_designator: STANDARD, head_outside_diameter: 1.797 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-286-4185, 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
RA6428
NSN: 5340-00-286-4185
FSC: 5340
CAGE: 34895 — HF GROUP INC DBA HF GROUP INC (USA)
SPECIFICATIONS
materialSTEEL COMP 1010
head_height0.125 INCHES NOMINAL IN
overall_height0.344 INCHES NOMINAL IN
prong_quantity12
style_designatorSTANDARD
head_outside_diameter1.797 INCHES NOMINAL IN
prong_outside_diameter1.656 INCHES NOMINAL IN
hole_accommodation_diameter1.625 INCHES NOMINAL IN
material_accommodated_thickness0.062 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN
material_document_and_classificationSAE 1010 ASSN STD SINGLE MATERIAL RESPONSE
NSN5340-00-286-4185
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: RA6428 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
•
HEAD OUTSIDE DIAMETER: 1.797 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 1010
•
HEAD HEIGHT: 0.125 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STANDARD
•
MATERIAL ACCOMMODATED THICKNESS: 0.062 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN
•
PRONG QUANTITY: 12
•
HOLE ACCOMMODATION DIAMETER: 1.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
HEAD OUTSIDE DIAMETER1.797 INCHES NOMINAL IN
MATERIALSTEEL COMP 1010
HEAD HEIGHT0.125 INCHES NOMINAL IN
OVERALL HEIGHT0.344 INCHES NOMINAL IN
STYLE DESIGNATORSTANDARD
MATERIAL ACCOMMODATED THICKNESS0.062 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN
PRONG QUANTITY12
HOLE ACCOMMODATION DIAMETER1.625 INCHES NOMINAL IN
PRONG OUTSIDE DIAMETER1.656 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 1010 ASSN STD SINGLE MATERIAL RESPONSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
72-6970-341Interchangeable
interchangeable cross-reference
interchangeable
20504-29Interchangeable
interchangeable cross-reference
interchangeable
895DUInterchangeable
interchangeable cross-reference
interchangeable
50841AInterchangeable
interchangeable cross-reference
interchangeable
50841Interchangeable
interchangeable cross-reference
interchangeable
SC-C-70494Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RA6428?
RA6428 is a GASKET.
What parts can replace RA6428?
There are 12 known substitutes for RA6428: 72-6970-341, 20504-29, 895DU and 9 more. Substitute compatibility should be verified for your specific system.
Is RA6428 still available?
RA6428 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026