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Technical Data Sheet
PartsTable / COMPONENT / ST9M456-1
ST9M456-1 ✓ 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 SEAL,BOOT ANGULAR is a the manufacturer industrial component. Key specifications include end_item_identification: AIRCRAFT, EAGLE F-15, general_characteristics_item_description: RUBBER MIL-R-25988 TYPE 2 CLASS 1 GRADE 60 AND ALUMINUM ALLOY QQ-A-250/5 T81. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-274-8846, 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
ST9M456-1
NSN: 5330-00-274-8846
FSC: 5330
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
end_item_identificationAIRCRAFT, EAGLE F-15
general_characteristics_item_descriptionRUBBER MIL-R-25988 TYPE 2 CLASS 1 GRADE 60 AND ALUMINUM ALLOY QQ-A-250/5 T81
NSN5330-00-274-8846
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: ST9M456-1 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: RUBBER MIL-R-25988 TYPE 2 CLASS 1 GRADE 60 AND ALUMINUM ALLOY QQ-A-250/5 T81
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONRUBBER MIL-R-25988 TYPE 2 CLASS 1 GRADE 60 AND ALUMINUM ALLOY QQ-A-250/5 T81
END ITEM IDENTIFICATIONAIRCRAFT, EAGLE F-15
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
74851Interchangeable
interchangeable cross-reference
interchangeable
4851Interchangeable
interchangeable cross-reference
interchangeable
68-831Interchangeable
interchangeable cross-reference
interchangeable
G18905Interchangeable
interchangeable cross-reference
interchangeable
H18905Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ST9M456-1?
ST9M456-1 is a SEAL,BOOT ANGULAR.
What parts can replace ST9M456-1?
There are 5 known substitutes for ST9M456-1: 74851, 4851, 68-831 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ST9M456-1?
ST9M456-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-274-8846. 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