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563-7286781-50 — SEAL,PLAIN

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

563-7286781-50: SEAL,PLAIN.

The SEAL,PLAIN is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYURETHANE OVERALL, seal_width: 0.860 INCHES NOMINAL IN, construction: ONE-PIECE, housing_bore_diameter: 1.865 INCHES MINIMUM AND 1.885 INCHES MAXIMUM IN, end_item_identification: NSSN SUBMARINE VALVE,ASSY AND DETAIL HULL AND BACKUP TOWED SONAR, accommodated_shaft_diameter: 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-504-0771, 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
563-7286781-50
NSN: 5330-01-504-0771
FSC: 5330 — Packing and Gasket Materials
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialPLASTIC POLYURETHANE OVERALL
seal_width0.860 INCHES NOMINAL IN
constructionONE-PIECE
housing_bore_diameter1.865 INCHES MINIMUM AND 1.885 INCHES MAXIMUM IN
end_item_identificationNSSN SUBMARINE VALVE,ASSY AND DETAIL HULL AND BACKUP TOWED SONAR
accommodated_shaft_diameter0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
part_name_assigned_by_controlling_agencySEAL DYNAMIC
NSN5330-01-504-0771
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 563-7286781-50 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
•
SEAL WIDTH: 0.860 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 1.865 INCHES MINIMUM AND 1.885 INCHES MAXIMUM IN
•
ACCOMMODATED SHAFT DIAMETER: 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
•
MATERIAL: PLASTIC POLYURETHANE OVERALL
•
CONSTRUCTION: ONE-PIECE
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.860 INCHES NOMINAL IN
HOUSING BORE DIAMETER1.865 INCHES MINIMUM AND 1.885 INCHES MAXIMUM IN
ACCOMMODATED SHAFT DIAMETER0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
PART NAME ASSIGNED BY CONTROLLING AGENCYSEAL DYNAMIC
END ITEM IDENTIFICATIONNSSN SUBMARINE VALVE,ASSY AND DETAIL HULL AND BACKUP TOWED SONAR
MATERIALPLASTIC POLYURETHANE OVERALL
CONSTRUCTIONONE-PIECE
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES 2
H684-1505-50Reference document
Same NSN cross-reference
Reference document — Secondary reference
H6841505A-50Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 563-7286781-50?
563-7286781-50 is a SEAL,PLAIN.
What parts can replace 563-7286781-50?
There are 2 known substitutes for 563-7286781-50: H684-1505-50, H6841505A-50. Substitute compatibility should be verified for your specific system.
What is the NSN for 563-7286781-50?
563-7286781-50 is cataloged in the U.S. Government catalog under NSN 5330-01-504-0771. This indicates validated use in U.S. government and defense supply chains.
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