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PartsTable / COMPONENT / A2125C
A2125C ✓ 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 GASKET is a the manufacturer industrial component. Key specifications include material: STEEL COMP 321 OVERALL, outside_diameter: 2.125 INCHES MINIMUM AND 2.130 INCHES MAXIMUM IN, style_designator: CIRCULAR, aperture_diameter: 1.997 INCHES MINIMUM AND 2.010 INCHES MAXIMUM IN, cross-sectional_thickness: 0.061 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN, cross-sectional_shape_style: HOLLOW. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-818-6361, 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
A2125C
NSN: 5330-00-818-6361
FSC: 5330
CAGE: 56257 — TECHNETICS GROUP LLC DBA TECHNETICS GROUP COLUMBIA DIV TECHNETICS GROUP COLUMBIA (USA)
SPECIFICATIONS
materialSTEEL COMP 321 OVERALL
outside_diameter2.125 INCHES MINIMUM AND 2.130 INCHES MAXIMUM IN
style_designatorCIRCULAR
aperture_diameter1.997 INCHES MINIMUM AND 2.010 INCHES MAXIMUM IN
cross-sectional_thickness0.061 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
cross-sectional_shape_styleHOLLOW
NSN5330-00-818-6361
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A2125C 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
•
OUTSIDE DIAMETER: 2.125 INCHES MINIMUM AND 2.130 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: HOLLOW
•
MATERIAL: STEEL COMP 321 OVERALL
•
STYLE DESIGNATOR: CIRCULAR
•
APERTURE DIAMETER: 1.997 INCHES MINIMUM AND 2.010 INCHES MAXIMUM IN
•
CROSS-SECTIONAL THICKNESS: 0.061 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER2.125 INCHES MINIMUM AND 2.130 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLEHOLLOW
MATERIALSTEEL COMP 321 OVERALL
STYLE DESIGNATORCIRCULAR
APERTURE DIAMETER1.997 INCHES MINIMUM AND 2.010 INCHES MAXIMUM IN
CROSS-SECTIONAL THICKNESS0.061 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
A2375CInterchangeable
interchangeable cross-reference
interchangeable
186948Interchangeable
interchangeable cross-reference
interchangeable
SAE-AS9202Interchangeable
interchangeable cross-reference
interchangeable
5330PL0784525Interchangeable
interchangeable cross-reference
interchangeable
MS9202-119Interchangeable
interchangeable cross-reference
interchangeable
MS9202-029Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A2125C?
A2125C is a GASKET.
What parts can replace A2125C?
There are 16 known substitutes for A2125C: A2375C, 186948, SAE-AS9202 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A2125C?
A2125C is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-818-6361. 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