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PartsTable / COMPONENT / B831-9511-102
B831-9511-102 ✓ 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 SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: STEEL CASE, case_style: SQUARE, seal_width: 0.375 INCHES NOMINAL IN, hardness_rating: 85.0 SHORE DUROMETER A NOMINAL SEALING ELEMENT, outside_diameter: 4.381 INCHES NOMINAL IN, surface_treatment: PLASTIC CASE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-503-1383, 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
B831-9511-102
NSN: 5330-01-503-1383
FSC: 5330
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
materialSTEEL CASE
case_styleSQUARE
seal_width0.375 INCHES NOMINAL IN
hardness_rating85.0 SHORE DUROMETER A NOMINAL SEALING ELEMENT
outside_diameter4.381 INCHES NOMINAL IN
surface_treatmentPLASTIC CASE
fsc_application_dataCARGO BAY 3RD PLATFORM BRIDGING TRACK
housing_bore_diameter4.376 INCHES NOMINAL IN
sealing_element_styleVERTICAL-ANGULAR
end_item_identificationSEAWOLF CLASS SSN
accommodated_shaft_diameter3.625 INCHES NOMINAL IN
material_document_and_classificationSAE1006-1008 ASSN STD SINGLE MATERIAL RESPONSE CASE
NSN5330-01-503-1383
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B831-9511-102 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
•
HOUSING BORE DIAMETER: 4.376 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 302 SPRING
•
SURFACE TREATMENT: PLASTIC CASE
•
OUTSIDE DIAMETER: 4.381 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 3600 FEET PER MINUTE FT
•
CASE STYLE: SQUARE
•
SEAL WIDTH: 0.375 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT DIAMETER: 3.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
HOUSING BORE DIAMETER4.376 INCHES NOMINAL IN
MATERIALSTEEL COMP 302 SPRING
SURFACE TREATMENTPLASTIC CASE
OUTSIDE DIAMETER4.381 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED3600 FEET PER MINUTE FT
CASE STYLESQUARE
SEAL WIDTH0.375 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER3.625 INCHES NOMINAL IN
HARDNESS RATING85.0 SHORE DUROMETER A NOMINAL SEALING ELEMENT
MATERIAL DOCUMENT AND CLASSIFICATIONSAE1006-1008 ASSN STD SINGLE MATERIAL RESPONSE CASE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
36153Interchangeable
px2-300d 2TB
interchangeable
D15-739KPC383Interchangeable
interchangeable cross-reference
interchangeable
D15-648KPC383Interchangeable
interchangeable cross-reference
interchangeable
110440Interchangeable
interchangeable cross-reference
interchangeable
H-54699Interchangeable
interchangeable cross-reference
interchangeable
E39969Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B831-9511-102?
B831-9511-102 is a SEAL,PLAIN ENCASED.
What parts can replace B831-9511-102?
There are 13 known substitutes for B831-9511-102: 36153, D15-739KPC383, D15-648KPC383 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B831-9511-102?
B831-9511-102 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-503-1383. 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