PartsTable
Technical Data Sheet
MS9021-030ES ✓ 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, hardness_rating: 65.0 SHORE DUROMETER A NOMINAL, outside_diameter: 1.735 INCHES MINIMUM AND 1.773 INCHES MAXIMUM IN, center_hole_diameter: 1.604 INCHES MINIMUM AND 1.624 INCHES MAXIMUM IN, cross-sectional_height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-551-8252, 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
MS9021-030ES
NSN: 5331-00-551-8252
FSC: 5331 — O-RING
CAGE: H2313 — ERIKS B.V. (NLD)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
hardness_rating65.0 SHORE DUROMETER A NOMINAL
outside_diameter1.735 INCHES MINIMUM AND 1.773 INCHES MAXIMUM IN
center_hole_diameter1.604 INCHES MINIMUM AND 1.624 INCHES MAXIMUM IN
cross-sectional_height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
NSN5331-00-551-8252
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS9021-030ES 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
HARDNESS RATING: 65.0 SHORE DUROMETER A NOMINAL
OUTSIDE DIAMETER: 1.735 INCHES MINIMUM AND 1.773 INCHES MAXIMUM IN
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
CENTER HOLE DIAMETER: 1.604 INCHES MINIMUM AND 1.624 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
HARDNESS RATING65.0 SHORE DUROMETER A NOMINAL
OUTSIDE DIAMETER1.735 INCHES MINIMUM AND 1.773 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
CENTER HOLE DIAMETER1.604 INCHES MINIMUM AND 1.624 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
152-0909Interchangeable
interchangeable cross-reference
interchangeable
403834-1Interchangeable
interchangeable cross-reference
interchangeable
10411-13Interchangeable
interchangeable cross-reference
interchangeable
AS3578-028Interchangeable
interchangeable cross-reference
interchangeable
MS9021-028ESInterchangeable
interchangeable cross-reference
interchangeable
MS9021-028Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS9021-030ES?
MS9021-030ES is a O-RING.
What parts can replace MS9021-030ES?
There are 11 known substitutes for MS9021-030ES: 152-0909, 403834-1, 10411-13 and 8 more. Substitute compatibility should be verified for your specific system.
Is MS9021-030ES still available?
MS9021-030ES is currently cancelled.
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