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Technical Data Sheet

MS28775-245 — Technical Data Sheet

✓ 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, temp_rating: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF, outside_diameter: 4.637 INCHES NOMINAL IN, center_hole_diameter: 4.344 INCHES MINIMUM AND 4.374 INCHES MAXIMUM IN, elongation_percentage: 160 MAXIMUM, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System under NSN 5331-00-579-7921, 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
MS28775-245
NSN: 5331-00-579-7921
FSC: 5331 — O-RING
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
temp_rating-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
outside_diameter4.637 INCHES NOMINAL IN
center_hole_diameter4.344 INCHES MINIMUM AND 4.374 INCHES MAXIMUM IN
elongation_percentage160 MAXIMUM
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
NSN5331-00-579-7921
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS28775-245 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
•
OUTSIDE DIAMETER: 4.637 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
ELONGATION PERCENTAGE: 160 MAXIMUM
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
TEMP RATING: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
•
CENTER HOLE DIAMETER: 4.344 INCHES MINIMUM AND 4.374 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER4.637 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
ELONGATION PERCENTAGE160 MAXIMUM
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TEMP RATING-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
CENTER HOLE DIAMETER4.344 INCHES MINIMUM AND 4.374 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
N304-7-23InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
68547InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
N0304 2-425InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
N0304 2-245InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2-245 N304-75InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
AN6227-88InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS28775-245?
MS28775-245 is a O-RING.
What parts can replace MS28775-245?
There are 23 known substitutes for MS28775-245: N304-7-23, 68547, N0304 2-425 and 20 more. Substitute compatibility should be verified for your specific system.
Is MS28775-245 still available?
MS28775-245 is currently cancelled.
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