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Technical Data Sheet
PartsTable / COMPONENT / MS9058-6ES
MS9058-6ES ✓ 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 BACK-UP RING,PREFORMED PACKING is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE, cross-sectional_height: 0.061 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-722-4969, 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
MS9058-6ES
NSN: 5330-00-722-4969
FSC: 5330
CAGE: H2313 — ERIKS B.V. (NLD)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE
cross-sectional_height0.061 INCHES NOMINAL IN
NSN5330-00-722-4969
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS9058-6ES 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
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE
•
CROSS-SECTIONAL HEIGHT: 0.061 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE
CROSS-SECTIONAL HEIGHT0.061 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
MS9058-10Interchangeable
interchangeable cross-reference
interchangeable
SAE-AS9058Interchangeable
interchangeable cross-reference
interchangeable
MS9058-32Interchangeable
interchangeable cross-reference
interchangeable
868879-2Interchangeable
interchangeable cross-reference
interchangeable
MS9058-05Interchangeable
interchangeable cross-reference
interchangeable
5R15-16Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS9058-6ES?
MS9058-6ES is a BACK-UP RING,PREFORMED PACKING.
What parts can replace MS9058-6ES?
There are 23 known substitutes for MS9058-6ES: MS9058-10, SAE-AS9058, MS9058-32 and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS9058-6ES?
MS9058-6ES is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-722-4969. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026