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7521904 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7521904: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: PAPER AND RUBBER CHLOROPRENE CLASS CR OVERALL, hole_diameter: 0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 4.438 INCHES NOMINAL IN, aperture_width: 1.125 INCHES NOMINAL IN, overall_length: 7.781 INCHES NOMINAL IN, aperture_length: 2.188 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-752-1904, 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
7521904
NSN: 5330-00-752-1904
FSC: 5330 — Packing and Gasket Materials
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialPAPER AND RUBBER CHLOROPRENE CLASS CR OVERALL
hole_diameter0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width4.438 INCHES NOMINAL IN
aperture_width1.125 INCHES NOMINAL IN
overall_length7.781 INCHES NOMINAL IN
aperture_length2.188 INCHES NOMINAL IN
inside_corner_radius1.125 INCHES NOMINAL IN
outside_corner_radius0.406 INCHES NOMINAL IN
cross-sectional_thickness0.031 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-G-12803 F3553-A MIL SPEC ALL MATERIAL RESPONSES OVERALL
NSN5330-00-752-1904
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7521904 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: 0.031 INCHES NOMINAL IN
•
INSIDE CORNER RADIUS: 1.125 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-12803 F3553-A MIL SPEC ALL MATERIAL RESPONSES OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
APERTURE WIDTH: 1.125 INCHES NOMINAL IN
•
APERTURE LENGTH: 2.188 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
INSIDE CORNER RADIUS1.125 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-12803 F3553-A MIL SPEC ALL MATERIAL RESPONSES OVERALL
OVERALL LENGTH7.781 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OVERALL WIDTH4.438 INCHES NOMINAL IN
APERTURE WIDTH1.125 INCHES NOMINAL IN
APERTURE LENGTH2.188 INCHES NOMINAL IN
OUTSIDE CORNER RADIUS0.406 INCHES NOMINAL IN
MATERIALPAPER AND RUBBER CHLOROPRENE CLASS CR OVERALL
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 4
913629Reference document
Same NSN cross-reference
Reference document — Secondary reference
B3453Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
1013A7Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
5330PL1724092Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 7521904?
7521904 is a GASKET.
What parts can replace 7521904?
There are 4 known substitutes for 7521904: 913629, B3453, 1013A7 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7521904?
7521904 is cataloged in the U.S. Government catalog under NSN 5330-00-752-1904. This indicates validated use in U.S. government and defense supply chains.
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