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ST9M458-1 — MOUNT,RESILIENT,UTILITY

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

ST9M458-1: MOUNT,RESILIENT,UTILITY.

The MOUNT,RESILIENT,UTILITY is a the manufacturer industrial component. Key specifications include height: 0.500 INCHES NOMINAL IN, material: ALUMINUM ALLOY PLATE, load_rating: 11.5 POUNDS MAXIMUM LBS, flange_width: 1.750 INCHES NOMINAL IN, inside_diameter: 0.265 INCHES NOMINAL IN, flange_thickness: 0.060 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-364-9563, 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
ST9M458-1
NSN: 5340-00-364-9563
FSC: 5340 — Hardware, Commercial
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
height0.500 INCHES NOMINAL IN
materialALUMINUM ALLOY PLATE
load_rating11.5 POUNDS MAXIMUM LBS
flange_width1.750 INCHES NOMINAL IN
inside_diameter0.265 INCHES NOMINAL IN
flange_thickness0.060 INCHES NOMINAL IN
surface_treatmentCHROMATE PLATE
flange_mounting_hole_diameter0.195 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
material_document_and_classificationQQ-A-250/4, ALLOY 2024 FED SPEC SINGLE MATERIAL RESPONSE INNER MEMBER
surface_treatment_document_and_classificationMIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE PLATE
shortest_distance_between_mounting_hole_centers1.375 INCHES NOMINAL IN
NSN5340-00-364-9563
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: ST9M458-1 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
•
FLANGE MOUNTING HOLE DIAMETER: 0.195 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE INNER MEMBER
•
LOAD RATING: 11.5 POUNDS MAXIMUM LBS
•
FLANGE THICKNESS: 0.060 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/4, ALLOY 2024 FED SPEC SINGLE MATERIAL RESPONSE INNER MEMBER
•
SHORTEST DISTANCE BETWEEN MOUNTING HOLE CENTERS: 1.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLANGE MOUNTING HOLE DIAMETER0.195 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE INNER MEMBER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE PLATE
LOAD RATING11.5 POUNDS MAXIMUM LBS
FLANGE THICKNESS0.060 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/4, ALLOY 2024 FED SPEC SINGLE MATERIAL RESPONSE INNER MEMBER
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/4, ALLOY 2024 FED SPEC SINGLE MATERIAL RESPONSE PLATE
SHORTEST DISTANCE BETWEEN MOUNTING HOLE CENTERS1.375 INCHES NOMINAL IN
INSIDE DIAMETER0.265 INCHES NOMINAL IN
HEIGHT0.500 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ST9M458-1?
ST9M458-1 is a MOUNT,RESILIENT,UTILITY.
What is the NSN for ST9M458-1?
ST9M458-1 is cataloged in the U.S. Government catalog under NSN 5340-00-364-9563. This indicates validated use in U.S. government and defense supply chains.
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