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Technical Data Sheet
PartsTable / O-RING / MS28775-124ES
MS28775-124ES ✓ 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, temp_rating: 275.0 FAHRENHEIT DEGF, hardness_rating: 65.0 SHORE DUROMETER A MINIMUM AND 71.0 SHORE DUROMETER A MAXIMUM, outside_diameter: 1.443 INCHES NOMINAL IN, special_features: MARKED WITH A BLUE DOT, center_hole_diameter: 1.231 INCHES MINIMUM AND 1.243 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-936-8876, 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
MS28775-124ES
NSN: 5331-00-936-8876
FSC: 5331 — O-RING
CAGE: H2313 — ERIKS B.V. (NLD)
SPECIFICATIONS
materialRUBBER SYNTHETIC
temp_rating275.0 FAHRENHEIT DEGF
hardness_rating65.0 SHORE DUROMETER A MINIMUM AND 71.0 SHORE DUROMETER A MAXIMUM
outside_diameter1.443 INCHES NOMINAL IN
special_featuresMARKED WITH A BLUE DOT
center_hole_diameter1.231 INCHES MINIMUM AND 1.243 INCHES MAXIMUM IN
elongation_percentage160 MAXIMUM
cross-sectional_height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
departure_from_cited_documentCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
criticality_code_justificationZZZW
NSN5331-00-936-8876
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS28775-124ES 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
•
ELONGATION PERCENTAGE: 160 MAXIMUM
•
MATERIAL: RUBBER SYNTHETIC
•
CRITICALITY CODE JUSTIFICATION: ZZZW
•
DEPARTURE FROM CITED DOCUMENT: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
•
CROSS-SECTIONAL HEIGHT: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 1.443 INCHES NOMINAL IN
•
TEMP RATING: 275.0 FAHRENHEIT DEGF
TECHNICAL CHARACTERISTICS (FLIS)
ELONGATION PERCENTAGE160 MAXIMUM
MATERIALRUBBER SYNTHETIC
CRITICALITY CODE JUSTIFICATIONZZZW
SPECIAL FEATURESMARKED WITH A BLUE DOT
DEPARTURE FROM CITED DOCUMENTCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
CROSS-SECTIONAL HEIGHT0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
OUTSIDE DIAMETER1.443 INCHES NOMINAL IN
TEMP RATING275.0 FAHRENHEIT DEGF
HARDNESS RATING65.0 SHORE DUROMETER A MINIMUM AND 71.0 SHORE DUROMETER A MAXIMUM
CENTER HOLE DIAMETER1.231 INCHES MINIMUM AND 1.243 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
44542Interchangeable
interchangeable cross-reference
interchangeable
200851MInterchangeable
interchangeable cross-reference
interchangeable
20085-1Interchangeable
interchangeable cross-reference
interchangeable
31,42X2,62SR832-75AInterchangeable
interchangeable cross-reference
interchangeable
1376-02-128PInterchangeable
interchangeable cross-reference
interchangeable
A132R124Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS28775-124ES?
MS28775-124ES is a O-RING.
What parts can replace MS28775-124ES?
There are 16 known substitutes for MS28775-124ES: 44542, 200851M, 20085-1 and 13 more. Substitute compatibility should be verified for your specific system.
Is MS28775-124ES still available?
MS28775-124ES 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