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Technical Data Sheet
PartsTable / COMPONENT / 1851383PC1
1851383PC1 ✓ 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: RUBBER BUTADIENE-STYRENE CLASS SBR OVERALL, hole_diameter: 0.141 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, hardness_rating: 40.0 SHORE DUROMETER A MINIMUM AND 50.0 SHORE DUROMETER A MAXIMUM OVERALL, outside_diameter: 3.500 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 2.812 INCHES NOMINAL 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 5330-00-718-5526, 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
1851383PC1
NSN: 5330-00-718-5526
FSC: 5330
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-STYRENE CLASS SBR OVERALL
hole_diameter0.141 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
hardness_rating40.0 SHORE DUROMETER A MINIMUM AND 50.0 SHORE DUROMETER A MAXIMUM OVERALL
outside_diameter3.500 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter2.812 INCHES NOMINAL IN
bolt_hole_quantity3
bolt_circle_diameter3.156 INCHES NOMINAL IN
cross-sectional_thickness0.031 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-R-900 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-718-5526
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1851383PC1 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 SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
APERTURE DIAMETER: 2.812 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.141 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
BOLT CIRCLE DIAMETER: 3.156 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 3.500 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE-STYRENE CLASS SBR OVERALL
•
HARDNESS RATING: 40.0 SHORE DUROMETER A MINIMUM AND 50.0 SHORE DUROMETER A MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-900 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
APERTURE DIAMETER2.812 INCHES NOMINAL IN
HOLE DIAMETER0.141 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
BOLT CIRCLE DIAMETER3.156 INCHES NOMINAL IN
OUTSIDE DIAMETER3.500 INCHES NOMINAL IN
MATERIALRUBBER BUTADIENE-STYRENE CLASS SBR OVERALL
HARDNESS RATING40.0 SHORE DUROMETER A MINIMUM AND 50.0 SHORE DUROMETER A MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-900 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
BOLT HOLE QUANTITY3
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
181880PC4Interchangeable
interchangeable cross-reference
interchangeable
00737 SH 47 ST 164Interchangeable
interchangeable cross-reference
interchangeable
22890-8Interchangeable
interchangeable cross-reference
interchangeable
81125S41-38853ALT1PC14Interchangeable
interchangeable cross-reference
interchangeable
HH-P-96GInterchangeable
interchangeable cross-reference
interchangeable
274372PC6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1851383PC1?
1851383PC1 is a GASKET.
What parts can replace 1851383PC1?
There are 16 known substitutes for 1851383PC1: 181880PC4, 00737 SH 47 ST 164, 22890-8 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1851383PC1?
1851383PC1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-718-5526. 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