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Technical Data Sheet
PartsTable / O-RING / MS28775-007
MS28775-007 ✓ 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 O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL, temp_rating: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF, hardness_rating: 68.0 SHORE DUROMETER A NOMINAL OVERALL, peripheral_diameter: 0.285 INCHES NOMINAL IN, center_hole_diameter: 0.145 INCHES MINIMUM AND 0.146 INCHES MAXIMUM IN, elongation_percentage: 160 MAXIMUM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-292-0577, 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
MS28775-007
NSN: 5331-00-292-0577
FSC: 5331 — O-RING
CAGE: 0XK26 — SEALS & PACKINGS, LLC (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
temp_rating-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
hardness_rating68.0 SHORE DUROMETER A NOMINAL OVERALL
peripheral_diameter0.285 INCHES NOMINAL IN
center_hole_diameter0.145 INCHES MINIMUM AND 0.146 INCHES MAXIMUM IN
elongation_percentage160 MAXIMUM
cross-sectional_height0.070 INCHES NOMINAL IN
cross-sectional_shape_styleO-RING
material_document_and_classificationMIL-P-5516,CL B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
reference_number_differentiating_characteristicsAS DIFFERENTIATED BY MATERIAL IN ACCORDANCE WITH ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
NSN5331-00-292-0577
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS28775-007 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
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 0.274 INCHES MINIMUM AND 0.296 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.274 INCHES MINIMUM AND 0.296 INCHES MAXIMUM IN
CENTER HOLE DIAMETER0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
90228-1Interchangeable
interchangeable cross-reference
interchangeable
2620-906X12PC12Interchangeable
interchangeable cross-reference
interchangeable
845-1889555 PC 45Interchangeable
interchangeable cross-reference
interchangeable
SS845-2110225PIInterchangeable
interchangeable cross-reference
interchangeable
AS568-007Interchangeable
interchangeable cross-reference
interchangeable
ARP568-007MILG23652TYPE2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS28775-007?
MS28775-007 is a O-RING.
What parts can replace MS28775-007?
There are 25 known substitutes for MS28775-007: 90228-1, 2620-906X12PC12, 845-1889555 PC 45 and 22 more. Substitute compatibility should be verified for your specific system.
Is MS28775-007 still available?
MS28775-007 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