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BA1528 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

BA1528: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR AND ALUMINUM ALLOY 6061 OVERALL, hole_diameter: 0.280 INCHES MINIMUM AND 0.285 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 4.250 INCHES NOMINAL IN, overall_length: 7.740 INCHES NOMINAL IN, special_features: TWIN APERTURE,BOLT CIRCLE,BOLT HOLE QUANITY AND BOLT HOLE DIA.,ENDS ARE FLAT, aperture_diameter: 2.200 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-795-4087, 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
BA1528
NSN: 5330-00-795-4087
FSC: 5330 — Packing and Gasket Materials
CAGE: 95272 — STILLMAN SEAL CORPORATION DIV STILLMAN SEAL CORPERATION (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR AND ALUMINUM ALLOY 6061 OVERALL
hole_diameter0.280 INCHES MINIMUM AND 0.285 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
overall_width4.250 INCHES NOMINAL IN
overall_length7.740 INCHES NOMINAL IN
special_featuresTWIN APERTURE,BOLT CIRCLE,BOLT HOLE QUANITY AND BOLT HOLE DIA.,ENDS ARE FLAT
aperture_diameter2.200 INCHES NOMINAL IN
bolt_circle_diameter3.000 INCHES NOMINAL IN
cross-sectional_thickness0.090 INCHES NOMINAL IN
cross-sectional_shape_styleMETAL AND SYNTHETIC RUBBER
outside_corner_inverted_radius1.500 INCHES NOMINAL IN
material_document_and_classificationMIL-S-6855 CLASS 1 GRADE 60 MIL SPEC 1ST MATERIAL RESPONSE AND QQ-A-327 ALLOY 6061-T6 FED SPEC 2ND MATERIAL RESPONSE OVERALL
center_to_center_distance_between_bolt_holes_along_width2.122 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
NSN5330-00-795-4087
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: BA1528 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: 0.090 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-6855 CLASS 1 GRADE 60 MIL SPEC 1ST MATERIAL RESPONSE AND QQ-A-327 ALLOY 6061-T6 FED SPEC 2ND MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: METAL AND SYNTHETIC RUBBER
•
OUTSIDE CORNER INVERTED RADIUS: 1.500 INCHES NOMINAL IN
•
APERTURE DIAMETER: 2.200 INCHES NOMINAL IN
•
BOLT CIRCLE DIAMETER: 3.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.090 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6855 CLASS 1 GRADE 60 MIL SPEC 1ST MATERIAL RESPONSE AND QQ-A-327 ALLOY 6061-T6 FED SPEC 2ND MATERIAL RESPONSE OVERALL
OVERALL LENGTH7.740 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEMETAL AND SYNTHETIC RUBBER
OVERALL WIDTH4.250 INCHES NOMINAL IN
OUTSIDE CORNER INVERTED RADIUS1.500 INCHES NOMINAL IN
APERTURE DIAMETER2.200 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER3.000 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH2.122 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
SPECIAL FEATURESTWIN APERTURE,BOLT CIRCLE,BOLT HOLE QUANITY AND BOLT HOLE DIA.,ENDS ARE FLAT
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 2
2-52924-53Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
023460Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BA1528?
BA1528 is a GASKET.
What parts can replace BA1528?
There are 2 known substitutes for BA1528: 2-52924-53, 023460. Substitute compatibility should be verified for your specific system.
What is the NSN for BA1528?
BA1528 is cataloged in the U.S. Government catalog under NSN 5330-00-795-4087. 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.