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Technical Data Sheet
PartsTable / COMPONENT / B831-9511-100
B831-9511-100 ✓ 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 SPRING, case_style: FLANGED, seal_width: 0.375 INCHES NOMINAL IN, hardness_rating: 85.0 SHORE DUROMETER A NOMINAL SEALING ELEMENT, outside_diameter: 3.256 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 5330-01-466-4710, 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
B831-9511-100
NSN: 5330-01-466-4710
FSC: 5330
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
materialSTEEL SPRING
case_styleFLANGED
seal_width0.375 INCHES NOMINAL IN
hardness_rating85.0 SHORE DUROMETER A NOMINAL SEALING ELEMENT
outside_diameter3.256 INCHES NOMINAL IN
surface_treatmentPLASTIC CASE
housing_bore_diameter3.251 INCHES NOMINAL IN
sealing_element_styleANGULAR
end_item_identification2320-01-123-1610, MK48 POWER UNIT,FRONT; SEAWOLF CLASS SSN CARGO BAY 3RD PLATFORM BRIDGING TRACK
attachment_hole_diameter3.256 INCHES NOMINAL IN
accommodated_shaft_diameter2.500 INCHES NOMINAL IN
material_document_and_classificationQQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE CASE
NSN5330-01-466-4710
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B831-9511-100 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
•
CASE STYLE: FLANGED
•
ATTACHMENT HOLE DIAMETER: 3.256 INCHES NOMINAL IN
•
MATERIAL: STEEL CASE
•
SEALING ELEMENT STYLE: ANGULAR
•
ACCOMMODATED SHAFT DIAMETER: 2.500 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 3.256 INCHES NOMINAL IN
•
SEAL WIDTH: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CASE STYLEFLANGED
ATTACHMENT HOLE DIAMETER3.256 INCHES NOMINAL IN
MATERIALSTEEL CASE
SEALING ELEMENT STYLEANGULAR
ACCOMMODATED SHAFT DIAMETER2.500 INCHES NOMINAL IN
END ITEM IDENTIFICATION2320-01-123-1610, MK48 POWER UNIT,FRONT; SEAWOLF CLASS SSN CARGO BAY 3RD PLATFORM BRIDGING TRACK
OUTSIDE DIAMETER3.256 INCHES NOMINAL IN
SEAL WIDTH0.375 INCHES NOMINAL IN
SURFACE TREATMENTPLASTIC CASE
HOUSING BORE DIAMETER3.251 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
24899Interchangeable
interchangeable cross-reference
interchangeable
R0D12A611Interchangeable
interchangeable cross-reference
interchangeable
613-0009Interchangeable
interchangeable cross-reference
interchangeable
SFR144PPK24MILG3278Interchangeable
interchangeable cross-reference
interchangeable
350793-7-111Interchangeable
interchangeable cross-reference
interchangeable
121609AA-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B831-9511-100?
B831-9511-100 is a SEAL,PLAIN ENCASED.
What parts can replace B831-9511-100?
There are 12 known substitutes for B831-9511-100: 24899, R0D12A611, 613-0009 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B831-9511-100?
B831-9511-100 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-466-4710. 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