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Technical Data Sheet
PartsTable / COMPONENT / BS5-2351,PC.169
BS5-2351,PC.169 ✓ 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 BS5-2351,PC.169 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 5340-00-945-1402, 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
BS5-2351,PC.169
NSN: 5340-00-945-1402
FSC: 5340
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
Part NumberBS5-2351,PC.169
NSN5340-00-945-1402
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: BS5-2351,PC.169 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
•
BODY INSIDE DIAMETER: 0.531 INCHES NOMINAL IN
•
FLANGE DIAMETER: 1.875 INCHES NOMINAL IN
•
STYLE DESIGNATOR: IRREGULAR
•
MATERIAL: COPPER ALLOY 905
•
BODY OUTSIDE DIAMETER: 0.750 INCHES NOMINAL IN
•
FLANGE THICKNESS: 0.125 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
TECHNICAL CHARACTERISTICS (FLIS)
BODY INSIDE DIAMETER0.531 INCHES NOMINAL IN
OVERALL HEIGHT0.938 INCHES NOMINAL IN
FLANGE DIAMETER1.875 INCHES NOMINAL IN
STYLE DESIGNATORIRREGULAR
MATERIALCOPPER ALLOY 905
BODY OUTSIDE DIAMETER0.750 INCHES NOMINAL IN
FLANGE THICKNESS0.125 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
UC-18Interchangeable
interchangeable cross-reference
interchangeable
BS5-2351-132Interchangeable
interchangeable cross-reference
interchangeable
BS5-2351Interchangeable
interchangeable cross-reference
interchangeable
TC-18Interchangeable
interchangeable cross-reference
interchangeable
BS5-2351,PC.163Interchangeable
interchangeable cross-reference
interchangeable
CS 0842090Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BS5-2351,PC.169?
BS5-2351,PC.169 is a BS5-2351,PC.169.
What parts can replace BS5-2351,PC.169?
There are 10 known substitutes for BS5-2351,PC.169: UC-18, BS5-2351-132, BS5-2351 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BS5-2351,PC.169?
BS5-2351,PC.169 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-945-1402. 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