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PartsTable / COMPONENT / PL45308 PART 81391
PL45308 PART 81391 ✓ 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 GASKET is a the manufacturer industrial component. Key specifications include material: IRON OVERALL, outside_diameter: 15.609 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 14.125 INCHES NOMINAL IN, cross-sectional_thickness: 1.874 INCHES MINIMUM AND 1.875 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-113-5032, 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
PL45308 PART 81391
NSN: 5330-01-113-5032
FSC: 5330
CAGE: 48422 — WILLIAM POWELL COMPANY, THE DBA POWELL VALVE DIV THE STARFLO CORPORATION (USA)
SPECIFICATIONS
materialIRON OVERALL
outside_diameter15.609 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter14.125 INCHES NOMINAL IN
cross-sectional_thickness1.874 INCHES MINIMUM AND 1.875 INCHES MAXIMUM IN
NSN5330-01-113-5032
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: PL45308 PART 81391 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
•
MATERIAL: IRON OVERALL
•
APERTURE DIAMETER: 14.125 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CIRCULAR
•
CROSS-SECTIONAL THICKNESS: 1.874 INCHES MINIMUM AND 1.875 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 15.609 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALIRON OVERALL
APERTURE DIAMETER14.125 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
CROSS-SECTIONAL THICKNESS1.874 INCHES MINIMUM AND 1.875 INCHES MAXIMUM IN
OUTSIDE DIAMETER15.609 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
8139-1Interchangeable
interchangeable cross-reference
interchangeable
8139Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is PL45308 PART 81391?
PL45308 PART 81391 is a GASKET.
What parts can replace PL45308 PART 81391?
There are 2 known substitutes for PL45308 PART 81391: 8139-1, 8139. Substitute compatibility should be verified for your specific system.
What is the NSN for PL45308 PART 81391?
PL45308 PART 81391 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-113-5032. 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