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PartsTable / COMPONENT / MS28775-251
MS28775-251 ✓ 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 SYNTHETIC, outside_diameter: 5.387 INCHES NOMINAL IN, center_hole_diameter: 5.074 INCHES MINIMUM AND 5.144 INCHES MAXIMUM IN, elongation_percentage: 160 MAXIMUM, cross-sectional_height: 3.530 MILLIMETERS NOMINAL MM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-054-6887, 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
MS28775-251
NSN: 5330-00-054-6887
FSC: 5330
CAGE: H2313 — ERIKS B.V. (NLD)
SPECIFICATIONS
materialRUBBER SYNTHETIC
outside_diameter5.387 INCHES NOMINAL IN
center_hole_diameter5.074 INCHES MINIMUM AND 5.144 INCHES MAXIMUM IN
elongation_percentage160 MAXIMUM
cross-sectional_height3.530 MILLIMETERS NOMINAL MM
NSN5330-00-054-6887
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS28775-251 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
•
CENTER HOLE DIAMETER: 5.125 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER5.125 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
AN6230-29Interchangeable
interchangeable cross-reference
interchangeable
9852-151X1PC40Interchangeable
interchangeable cross-reference
interchangeable
R4512Interchangeable
interchangeable cross-reference
interchangeable
MS28775-251Interchangeable
interchangeable cross-reference
interchangeable
55-22036 PART 1Interchangeable
interchangeable cross-reference
interchangeable
07-635273Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS28775-251?
MS28775-251 is a O-RING.
What parts can replace MS28775-251?
There are 12 known substitutes for MS28775-251: AN6230-29, 9852-151X1PC40, R4512 and 9 more. Substitute compatibility should be verified for your specific system.
Is MS28775-251 still available?
MS28775-251 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