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Technical Data Sheet
PartsTable / COMPONENT / 501905
501905 ✓ 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 BUMPER is a the manufacturer industrial component. Key specifications include color: BLACK, material: RUBBER SYNTHETIC, hole_diameter: 0.313 INCHES NOMINAL IN, overall_height: 0.625 INCHES NOMINAL IN, style_designator: PAN TOP COUNTERBORED, first_counterbore_depth: 0.344 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 5340-00-255-0111, 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
501905
NSN: 5340-00-255-0111
FSC: 5340
CAGE: 12909 — CARDION INC (USA)
SPECIFICATIONS
colorBLACK
materialRUBBER SYNTHETIC
hole_diameter0.313 INCHES NOMINAL IN
overall_height0.625 INCHES NOMINAL IN
style_designatorPAN TOP COUNTERBORED
first_counterbore_depth0.344 INCHES NOMINAL IN
first_counterbore_diameter0.750 INCHES NOMINAL IN
outside/top_flange_diameter1.500 INCHES NOMINAL IN
NSN5340-00-255-0111
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 501905 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
•
HOLE DIAMETER: 0.313 INCHES NOMINAL IN
•
COLOR: BLACK
•
MATERIAL: RUBBER SYNTHETIC
•
STYLE DESIGNATOR: PAN TOP COUNTERBORED
•
FIRST COUNTERBORE DIAMETER: 0.750 INCHES NOMINAL IN
•
FIRST COUNTERBORE DEPTH: 0.344 INCHES NOMINAL IN
•
OUTSIDE/TOP FLANGE DIAMETER: 1.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER0.313 INCHES NOMINAL IN
OVERALL HEIGHT0.625 INCHES NOMINAL IN
COLORBLACK
MATERIALRUBBER SYNTHETIC
STYLE DESIGNATORPAN TOP COUNTERBORED
FIRST COUNTERBORE DIAMETER0.750 INCHES NOMINAL IN
FIRST COUNTERBORE DEPTH0.344 INCHES NOMINAL IN
OUTSIDE/TOP FLANGE DIAMETER1.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
1019-2Upgraded Successor
successor cross-reference
successor
ZB1002Upgraded Successor
successor cross-reference
successor
9900179Upgraded Successor
successor cross-reference
successor
834471-00Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 501905?
501905 is a BUMPER.
What parts can replace 501905?
There are 4 known substitutes for 501905: 1019-2, ZB1002, 9900179 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 501905?
501905 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-255-0111. 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