PartsTable
Technical Data Sheet
7521749 ✓ 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 AND LEAD AND TIN AND ASBESTOS OVERALL, hole_diameter: 0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 4.688 INCHES NOMINAL IN, style_designator: NON-CIRCULAR, aperture_diameter: 2.812 INCHES NOMINAL IN, surface_treatment: LACQUER OR VARNISH OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-285-5068, 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
7521749
NSN: 5330-00-285-5068
FSC: 5330
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL AND LEAD AND TIN AND ASBESTOS OVERALL
hole_diameter0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width4.688 INCHES NOMINAL IN
style_designatorNON-CIRCULAR
aperture_diameter2.812 INCHES NOMINAL IN
surface_treatmentLACQUER OR VARNISH OVERALL
bolt_hole_quantity3
bolt_circle_diameter4.438 INCHES NOMINAL IN
outside_corner_radius0.500 INCHES NOMINAL IN
cross-sectional_thickness0.079 INCHES MINIMUM AND 0.084 INCHES MAXIMUM IN
cross-sectional_shape_styleMETAL AND METALLIC MATERIALS
nondefinitive_spec/std_data3 TYPE
NSN5330-00-285-5068
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7521749 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 SHAPE STYLE: METAL AND METALLIC MATERIALS
SIDE RADIUS FROM BOLT CIRCLE: 4.250 INCHES NOMINAL IN
BOLT HOLE QUANTITY: 3
MATERIAL: STEEL AND LEAD AND TIN AND ASBESTOS OVERALL
SURFACE TREATMENT: LACQUER OR VARNISH OVERALL
STYLE DESIGNATOR: NON-CIRCULAR
APERTURE DIAMETER: 2.812 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLEMETAL AND METALLIC MATERIALS
SIDE RADIUS FROM BOLT CIRCLE4.250 INCHES NOMINAL IN
BOLT HOLE QUANTITY3
MATERIALSTEEL AND LEAD AND TIN AND ASBESTOS OVERALL
SURFACE TREATMENTLACQUER OR VARNISH OVERALL
STYLE DESIGNATORNON-CIRCULAR
OVERALL WIDTH4.688 INCHES NOMINAL IN
APERTURE DIAMETER2.812 INCHES NOMINAL IN
HOLE DIAMETER0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CROSS-SECTIONAL THICKNESS0.079 INCHES MINIMUM AND 0.084 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
PC5163811Interchangeable
interchangeable cross-reference
interchangeable
MILG14243Interchangeable
interchangeable cross-reference
interchangeable
5163811Interchangeable
interchangeable cross-reference
interchangeable
634184Interchangeable
interchangeable cross-reference
interchangeable
GPW9450Interchangeable
interchangeable cross-reference
interchangeable
5301CCInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7521749?
7521749 is a GASKET.
What parts can replace 7521749?
There are 12 known substitutes for 7521749: PC5163811, MILG14243, 5163811 and 9 more. Substitute compatibility should be verified for your specific system.
Is 7521749 still available?
7521749 is currently cancelled.
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