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225-128-112 NON-ASBESTOS — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

225-128-112 NON-ASBESTOS: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL, hole_diameter: 0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 8.000 INCHES NOMINAL IN, style_designator: NON-CIRCULAR, aperture_diameter: 6.125 INCHES MINIMUM AND 6.188 INCHES MAXIMUM IN, bolt_circle_diameter: 6.969 INCHES MINIMUM AND 7.031 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-390-1971, 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
225-128-112 NON-ASBESTOS
NSN: 5330-01-390-1971
FSC: 5330 — Packing and Gasket Materials
CAGE: 53964 — KAYDON CUSTOM FILTRATION CORPORATION (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
hole_diameter0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width8.000 INCHES NOMINAL IN
style_designatorNON-CIRCULAR
aperture_diameter6.125 INCHES MINIMUM AND 6.188 INCHES MAXIMUM IN
bolt_hole_quantity2
bolt_circle_diameter6.969 INCHES MINIMUM AND 7.031 INCHES MAXIMUM IN
outside_corner_radius0.500 INCHES NOMINAL IN
cross-sectional_thickness0.125 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
environmental_attribute_codeASBESTOS ALTERNATIVE PRODUCTS
side_radius_from_gasket_center3.422 INCHES MINIMUM AND 3.453 INCHES MAXIMUM IN
NSN5330-01-390-1971
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 225-128-112 NON-ASBESTOS 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 THICKNESS: 0.125 INCHES NOMINAL IN
•
SIDE RADIUS FROM GASKET CENTER: 3.422 INCHES MINIMUM AND 3.453 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: NON-CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-2765 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
APERTURE DIAMETER: 6.125 INCHES MINIMUM AND 6.188 INCHES MAXIMUM IN
•
BOLT HOLE QUANTITY: 2
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.125 INCHES NOMINAL IN
SIDE RADIUS FROM GASKET CENTER3.422 INCHES MINIMUM AND 3.453 INCHES MAXIMUM IN
STYLE DESIGNATORNON-CIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-2765 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OVERALL WIDTH8.000 INCHES NOMINAL IN
APERTURE DIAMETER6.125 INCHES MINIMUM AND 6.188 INCHES MAXIMUM IN
BOLT HOLE QUANTITY2
BOLT CIRCLE DIAMETER6.969 INCHES MINIMUM AND 7.031 INCHES MAXIMUM IN
ENVIRONMENTAL ATTRIBUTE CODEASBESTOS ALTERNATIVE PRODUCTS
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 225-128-112 NON-ASBESTOS?
225-128-112 NON-ASBESTOS is a GASKET.
What is the NSN for 225-128-112 NON-ASBESTOS?
225-128-112 NON-ASBESTOS is cataloged in the U.S. Government catalog under NSN 5330-01-390-1971. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.