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PartsTable / COMPONENT / L686/47 PIECE-7
L686/47 PIECE-7 ✓ 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 L686/47 PIECE-7 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-420-1133, 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
L686/47 PIECE-7
NSN: 5330-00-420-1133
FSC: 5330
CAGE: N4528 — ROLLS-ROYCE MARINE A/S DEP. ENGINES-BERGEN (NOR)
SPECIFICATIONS
Part NumberL686/47 PIECE-7
NSN5330-00-420-1133
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: L686/47 PIECE-7 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
•
CROSS-SECTIONAL THICKNESS: 0.117 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 4.150 INCHES NOMINAL IN
•
APERTURE DIAMETER: 4.000 INCHES MINIMUM AND 4.040 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
HARDNESS RATING: 75.0 SHORE DUROMETER A NOMINAL OVERALL
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL: RUBBER SYNTHETIC OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL THICKNESS0.117 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN
OUTSIDE DIAMETER4.150 INCHES NOMINAL IN
APERTURE DIAMETER4.000 INCHES MINIMUM AND 4.040 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
HARDNESS RATING75.0 SHORE DUROMETER A NOMINAL OVERALL
STYLE DESIGNATORCIRCULAR
MATERIALRUBBER SYNTHETIC OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
321-204Interchangeable
interchangeable cross-reference
interchangeable
D-510-204Interchangeable
interchangeable cross-reference
interchangeable
03-85-0128Interchangeable
interchangeable cross-reference
interchangeable
352250014033Interchangeable
interchangeable cross-reference
interchangeable
81255Interchangeable
interchangeable cross-reference
interchangeable
H20087K001PC55Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is L686/47 PIECE-7?
L686/47 PIECE-7 is a L686/47 PIECE-7.
What parts can replace L686/47 PIECE-7?
There are 13 known substitutes for L686/47 PIECE-7: 321-204, D-510-204, 03-85-0128 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for L686/47 PIECE-7?
L686/47 PIECE-7 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-420-1133. 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