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Technical Data Sheet
PartsTable / COMPONENT / 0561B0028-2
0561B0028-2 ✓ 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 SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: LEATHER SEALING ELEMENT, case_style: SQUARE, seal_width: 0.250 INCHES NOMINAL IN, surface_treatment: CADMIUM OR ZINC CASE, housing_bore_diameter: 0.750 INCHES NOMINAL IN, sealing_element_style: ANGULAR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-599-5135, 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
0561B0028-2
NSN: 5330-00-599-5135
FSC: 5330
CAGE: 54497 — MARTIN MARIETTA TECHNOLOGIES INC SUB OF MARTIN MARIETTA CORP AERO AND NAVAL SYSTEMS (USA)
SPECIFICATIONS
materialLEATHER SEALING ELEMENT
case_styleSQUARE
seal_width0.250 INCHES NOMINAL IN
surface_treatmentCADMIUM OR ZINC CASE
housing_bore_diameter0.750 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter0.250 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed2000 FEET PER MINUTE FT
NSN5330-00-599-5135
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 0561B0028-2 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
•
CASE STYLE: SQUARE
•
MATERIAL: STEEL CASE
•
SURFACE TREATMENT: CADMIUM OR ZINC CASE
•
SEAL WIDTH: 0.250 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT DIAMETER: 0.250 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
•
HOUSING BORE DIAMETER: 0.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CASE STYLESQUARE
MATERIALSTEEL CASE
SURFACE TREATMENTCADMIUM OR ZINC CASE
MATERIALLEATHER SEALING ELEMENT
SEAL WIDTH0.250 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER0.250 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
HOUSING BORE DIAMETER0.750 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
7584AInterchangeable
interchangeable cross-reference
interchangeable
5-0435Interchangeable
interchangeable cross-reference
interchangeable
PGF3060Interchangeable
interchangeable cross-reference
interchangeable
763LXInterchangeable
interchangeable cross-reference
interchangeable
11987Interchangeable
interchangeable cross-reference
interchangeable
889842Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 0561B0028-2?
0561B0028-2 is a SEAL,PLAIN ENCASED.
What parts can replace 0561B0028-2?
There are 12 known substitutes for 0561B0028-2: 7584A, 5-0435, PGF3060 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 0561B0028-2?
0561B0028-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-599-5135. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026