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AS16268 ✓ 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 RING,METAL is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 928 OVERALL, ring_style: EXPANDING CONCENTRIC, joint_style: VERTICAL JOINT, overall_width: 0.1230 INCHES MINIMUM AND 0.1240 INCHES MAXIMUM IN, outside_diameter: 5.1240 INCHES MINIMUM AND 5.1250 INCHES MAXIMUM IN, surface_treatment: LEAD OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-166-0754, 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
AS16268
NSN: 5330-00-166-0754
FSC: 5330
CAGE: 12776 — AIRCRAFT SUPPLIES (USA)
SPECIFICATIONS
materialCOPPER ALLOY 928 OVERALL
ring_styleEXPANDING CONCENTRIC
joint_styleVERTICAL JOINT
overall_width0.1230 INCHES MINIMUM AND 0.1240 INCHES MAXIMUM IN
outside_diameter5.1240 INCHES MINIMUM AND 5.1250 INCHES MAXIMUM IN
surface_treatmentLEAD OVERALL
fsc_application_dataACFT ENG R1820
radial_wall_thickness0.1900 INCHES MINIMUM AND 0.2000 INCHES MAXIMUM IN
metallic_hardness_rating72.0 MINIMUM ROCKWELL B AND 82.0 MAXIMUM ROCKWELL B
cross-sectional_shape_stylePLAIN RECTANGULAR, STRAIGHT FACE
material_document_and_classificationAMS 7320B ASSN STD SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationAMS 2414 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NSN5330-00-166-0754
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS16268 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 7320B ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
RING STYLE: EXPANDING CONCENTRIC
•
MATERIAL: COPPER ALLOY 928 OVERALL
•
FSC APPLICATION DATA: ACFT ENG R1820
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS 2414 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
RADIAL WALL THICKNESS: 0.1900 INCHES MINIMUM AND 0.2000 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: PLAIN RECTANGULAR, STRAIGHT FACE
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH0.1230 INCHES MINIMUM AND 0.1240 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 7320B ASSN STD SINGLE MATERIAL RESPONSE OVERALL
RING STYLEEXPANDING CONCENTRIC
MATERIALCOPPER ALLOY 928 OVERALL
FSC APPLICATION DATAACFT ENG R1820
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2414 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
RADIAL WALL THICKNESS0.1900 INCHES MINIMUM AND 0.2000 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLEPLAIN RECTANGULAR, STRAIGHT FACE
SURFACE TREATMENTLEAD OVERALL
JOINT STYLEVERTICAL JOINT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
16268Interchangeable
interchangeable cross-reference
interchangeable
321-204Interchangeable
interchangeable cross-reference
interchangeable
D-510-204Interchangeable
interchangeable cross-reference
interchangeable
TL633UInterchangeable
interchangeable cross-reference
interchangeable
1188Interchangeable
interchangeable cross-reference
interchangeable
207.668Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS16268?
AS16268 is a SEAL RING,METAL.
What parts can replace AS16268?
There are 7 known substitutes for AS16268: 16268, 321-204, D-510-204 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS16268?
AS16268 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-166-0754. 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