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SDG-521655 — BOOT,DUST AND MOISTURE SEAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

SDG-521655: BOOT,DUST AND MOISTURE SEAL.

The BOOT,DUST AND MOISTURE SEAL is a the manufacturer industrial component. Key specifications include material: RUBBER BODY, style_designator: THRU-HOLE, base_outside_diameter: 5.500 INCHES NOMINAL IN, end_item_identification: BOAT,HARBOR SECURITY, 10 METER 10MHS0301, opening_inside_diameter: 0.563 INCHES NOMINAL IN, part_name_assigned_by_controlling_agency: MOTOR WELL BOOT. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-528-6593, 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
SDG-521655
NSN: 5340-01-528-6593
FSC: 5340 — Hardware, Commercial
CAGE: 41830 — SEA-DOG LINE DIV OF SNEVE-NYSETHER INC (USA)
SPECIFICATIONS
materialRUBBER BODY
style_designatorTHRU-HOLE
base_outside_diameter5.500 INCHES NOMINAL IN
end_item_identificationBOAT,HARBOR SECURITY, 10 METER 10MHS0301
opening_inside_diameter0.563 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyMOTOR WELL BOOT
NSN5340-01-528-6593
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: SDG-521655 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
•
OPENING INSIDE DIAMETER: 0.563 INCHES NOMINAL IN
•
STYLE DESIGNATOR: THRU-HOLE
•
BASE OUTSIDE DIAMETER: 5.500 INCHES NOMINAL IN
•
MATERIAL: RUBBER BODY
TECHNICAL CHARACTERISTICS
OPENING INSIDE DIAMETER0.563 INCHES NOMINAL IN
STYLE DESIGNATORTHRU-HOLE
BASE OUTSIDE DIAMETER5.500 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYMOTOR WELL BOOT
END ITEM IDENTIFICATIONBOAT,HARBOR SECURITY, 10 METER 10MHS0301
MATERIALRUBBER BODY
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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is SDG-521655?
SDG-521655 is a BOOT,DUST AND MOISTURE SEAL.
What is the NSN for SDG-521655?
SDG-521655 is cataloged in the U.S. Government catalog under NSN 5340-01-528-6593. 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.