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MS28775-045 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

MS28775-045: O-RING.

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: 4.129 INCHES NOMINAL IN, center_hole_diameter: 3.974 INCHES MINIMUM AND 4.004 INCHES MAXIMUM IN, elongation_percentage: 160 MAXIMUM, cross-sectional_height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-959-1562, 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
MS28775-045
NSN: 5331-00-959-1562
NIINs: 009591562, 012030270
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_diameter4.129 INCHES NOMINAL IN
center_hole_diameter3.974 INCHES MINIMUM AND 4.004 INCHES MAXIMUM IN
elongation_percentage160 MAXIMUM
cross-sectional_height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
criticality_code_justificationADYT
NSN5331-00-959-1562
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS28775-045 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: 4.096 INCHES MINIMUM AND 4.162 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 3.974 INCHES MINIMUM AND 4.004 INCHES MAXIMUM IN
•
MATERIAL: RUBBER SYNTHETIC
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
OUTSIDE DIAMETER4.096 INCHES MINIMUM AND 4.162 INCHES MAXIMUM IN
CENTER HOLE DIAMETER3.974 INCHES MINIMUM AND 4.004 INCHES MAXIMUM IN
MATERIALRUBBER SYNTHETIC
SUBSTITUTES & CROSS-REFERENCES 9
4067-70-045Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MS28775M2-45Reference document
Same NSN cross-reference
Reference document — Replaced / superseded reference
76865-44X1PC16Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
2641-635-02PC65Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
P48026-045Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
2-045 N304-75Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Shelf-life managedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS28775-045?
MS28775-045 is a O-RING.
What parts can replace MS28775-045?
There are 9 known substitutes for MS28775-045: 4067-70-045, MS28775M2-45, 76865-44X1PC16 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS28775-045?
MS28775-045 is cataloged in the U.S. Government catalog under NSN 5331-00-959-1562. This indicates validated use in U.S. government and defense supply chains.
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