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8214490-120 — BRACKET,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

8214490-120: BRACKET,MOUNTING.

The BRACKET,MOUNTING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316, overall_width: 1.130 INCHES NOMINAL IN, overall_height: 0.380 INCHES NOMINAL IN, overall_length: 6.250 INCHES NOMINAL IN, special_features: END ITEM: MULTIFUNCTION MODULAR MAST CLOSURE DOOR SYSTEM (MMMCDS), mounting_hole_type: PLAIN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-554-8874, 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
8214490-120
NSN: 5340-01-554-8874
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 316
overall_width1.130 INCHES NOMINAL IN
overall_height0.380 INCHES NOMINAL IN
overall_length6.250 INCHES NOMINAL IN
special_featuresEND ITEM: MULTIFUNCTION MODULAR MAST CLOSURE DOOR SYSTEM (MMMCDS)
mounting_hole_typePLAIN
mounting_hole_diameter0.562 INCHES NOMINAL IN
mounting_hole_quantity2
material_document_and_classificationQQ-S-766 FED SPEC ALL MATERIAL RESPONSES
NSN5340-01-554-8874
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8214490-120 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
•
MOUNTING HOLE QUANTITY: 2
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-766 FED SPEC ALL MATERIAL RESPONSES
•
MOUNTING HOLE DIAMETER: 0.562 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 316
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY2
OVERALL HEIGHT0.380 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-766 FED SPEC ALL MATERIAL RESPONSES
MOUNTING HOLE DIAMETER0.562 INCHES NOMINAL IN
OVERALL LENGTH6.250 INCHES NOMINAL IN
OVERALL WIDTH1.130 INCHES NOMINAL IN
SPECIAL FEATURESEND ITEM: MULTIFUNCTION MODULAR MAST CLOSURE DOOR SYSTEM (MMMCDS)
MATERIALSTEEL COMP 316
MOUNTING HOLE TYPEPLAIN
SUBSTITUTES & CROSS-REFERENCES 1
8214490Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8214490-120?
8214490-120 is a BRACKET,MOUNTING.
What parts can replace 8214490-120?
There is 1 known substitute for 8214490-120: 8214490. Substitute compatibility should be verified for your specific system.
What is the NSN for 8214490-120?
8214490-120 is cataloged in the U.S. Government catalog under NSN 5340-01-554-8874. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.