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PartsTable / COMPONENT / A61581 ITEM 3
A61581 ITEM 3 ✓ 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 RETAINER,PACKING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061 OVERALL, peripheral_diameter: 2.128 INCHES NOMINAL IN, center_hole_diameter: 0.250 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN, cross-sectional_height: 0.590 INCHES NOMINAL IN, flanged_body_outside_diameter: 0.580 INCHES NOMINAL IN, material_document_and_classification: QQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE 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 5330-01-411-9989, 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
A61581 ITEM 3
NSN: 5330-01-411-9989
FSC: 5330
CAGE: 86090 — EATON CORPORATION DBA AIRFRAME DIV FUEL & MOTION CONTROL SYSTEMS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061 OVERALL
peripheral_diameter2.128 INCHES NOMINAL IN
center_hole_diameter0.250 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN
cross-sectional_height0.590 INCHES NOMINAL IN
flanged_body_outside_diameter0.580 INCHES NOMINAL IN
material_document_and_classificationQQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-411-9989
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A61581 ITEM 3 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
•
CROSS-SECTIONAL HEIGHT: 0.590 INCHES NOMINAL IN
•
FLANGED BODY OUTSIDE DIAMETER: 0.580 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM ALLOY 6061 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CENTER HOLE DIAMETER: 0.250 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN
•
PERIPHERAL DIAMETER: 2.128 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.590 INCHES NOMINAL IN
FLANGED BODY OUTSIDE DIAMETER0.580 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY 6061 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CENTER HOLE DIAMETER0.250 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN
PERIPHERAL DIAMETER2.128 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
2-10222Interchangeable
interchangeable cross-reference
interchangeable
02 10222Interchangeable
interchangeable cross-reference
interchangeable
33-815116-1Interchangeable
interchangeable cross-reference
interchangeable
17-2-0676-1Interchangeable
interchangeable cross-reference
interchangeable
C3409X2Interchangeable
interchangeable cross-reference
interchangeable
J514Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A61581 ITEM 3?
A61581 ITEM 3 is a RETAINER,PACKING.
What parts can replace A61581 ITEM 3?
There are 6 known substitutes for A61581 ITEM 3: 2-10222, 02 10222, 33-815116-1 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A61581 ITEM 3?
A61581 ITEM 3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-411-9989. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026