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MS28775-434 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

MS28775-434: 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, hardness_rating: 72.0 SHORE DUROMETER A MINIMUM AND 78.0 SHORE DUROMETER A MAXIMUM, peripheral_diameter: 6.050 INCHES NOMINAL IN, center_hole_diameter: 5.563 INCHES MINIMUM AND 5.637 INCHES MAXIMUM IN, elongation_percentage: 125 MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-684-7735, 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
MS28775-434
NSN: 5331-00-684-7735
NIINs: 006847735, 011604333
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
hardness_rating72.0 SHORE DUROMETER A MINIMUM AND 78.0 SHORE DUROMETER A MAXIMUM
peripheral_diameter6.050 INCHES NOMINAL IN
center_hole_diameter5.563 INCHES MINIMUM AND 5.637 INCHES MAXIMUM IN
elongation_percentage125 MAXIMUM
cross-sectional_height0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
NSN5331-00-684-7735
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS28775-434 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: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 6.101 INCHES MINIMUM AND 6.199 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 5.577 INCHES MINIMUM AND 5.623 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
OUTSIDE DIAMETER6.101 INCHES MINIMUM AND 6.199 INCHES MAXIMUM IN
CENTER HOLE DIAMETER5.577 INCHES MINIMUM AND 5.623 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
SUBSTITUTES & CROSS-REFERENCES 4
AS28775Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-AS28775Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
2-434 N304-75Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
PRP568-434-4067-70Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS28775-434?
MS28775-434 is a O-RING.
What parts can replace MS28775-434?
There are 4 known substitutes for MS28775-434: AS28775, SAE-AS28775, 2-434 N304-75 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS28775-434?
MS28775-434 is cataloged in the U.S. Government catalog under NSN 5331-00-684-7735. This indicates validated use in U.S. government and defense supply chains.
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