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PartsTable / COMPONENT / K125-500
K125-500 ✓ 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: 0.250 INCHES NOMINAL IN, outside_diameter: 5.131 INCHES NOMINAL IN, surface_treatment: PLASTIC CASE, housing_bore_diameter: 5.126 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 5330-00-914-5828, 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
K125-500
NSN: 5330-00-914-5828
FSC: 5330
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialSTEEL CASE
case_styleSQUARE
seal_width0.250 INCHES NOMINAL IN
outside_diameter5.131 INCHES NOMINAL IN
surface_treatmentPLASTIC CASE
housing_bore_diameter5.126 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter4.250 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed2000 FEET PER MINUTE FT
NSN5330-00-914-5828
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: K125-500 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
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
•
SURFACE TREATMENT: PLASTIC CASE
•
HOUSING BORE DIAMETER: 5.126 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 5.131 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT DIAMETER: 4.250 INCHES NOMINAL IN
•
MATERIAL: STEEL CASE
•
SEALING ELEMENT STYLE: ANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
SURFACE TREATMENTPLASTIC CASE
HOUSING BORE DIAMETER5.126 INCHES NOMINAL IN
OUTSIDE DIAMETER5.131 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER4.250 INCHES NOMINAL IN
MATERIALSTEEL CASE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
SEALING ELEMENT STYLEANGULAR
CASE STYLESQUARE
SEAL WIDTH0.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
SAE-AMS-QQ-A-200/8Interchangeable
interchangeable cross-reference
interchangeable
AMS-QQ-A-200/8Interchangeable
interchangeable cross-reference
interchangeable
LS31121-3Interchangeable
interchangeable cross-reference
interchangeable
JAN1N5555AInterchangeable
interchangeable cross-reference
interchangeable
353-0216-010Interchangeable
interchangeable cross-reference
interchangeable
12038-0001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is K125-500?
K125-500 is a SEAL,PLAIN ENCASED.
What parts can replace K125-500?
There are 18 known substitutes for K125-500: SAE-AMS-QQ-A-200/8, AMS-QQ-A-200/8, LS31121-3 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for K125-500?
K125-500 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-914-5828. 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