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Q4048-537A-R12 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

Q4048-537A-R12: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER OVERALL, hole_diameter: 0.343 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, outside_diameter: 5.250 INCHES NOMINAL IN, style_designator: CIRCULAR, bolt_circle_diameter: 4.500 INCHES NOMINAL IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-372-7984, 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
Q4048-537A-R12
NSN: 5330-01-372-7984
FSC: 5330 — Packing and Gasket Materials
CAGE: 07322 — MINNESOTA RUBBER CO (USA)
SPECIFICATIONS
materialRUBBER OVERALL
hole_diameter0.343 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
outside_diameter5.250 INCHES NOMINAL IN
style_designatorCIRCULAR
bolt_hole_quantity6
bolt_circle_diameter4.500 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-01-372-7984
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: Q4048-537A-R12 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
•
STYLE DESIGNATOR: CIRCULAR
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
OUTSIDE DIAMETER: 5.250 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 6
•
BOLT CIRCLE DIAMETER: 4.500 INCHES NOMINAL IN
•
MATERIAL: RUBBER OVERALL
•
HOLE DIAMETER: 0.343 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORCIRCULAR
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER5.250 INCHES NOMINAL IN
BOLT HOLE QUANTITY6
BOLT CIRCLE DIAMETER4.500 INCHES NOMINAL IN
MATERIALRUBBER OVERALL
HOLE DIAMETER0.343 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
SUBSTITUTES & CROSS-REFERENCES 1
8-52-414Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is Q4048-537A-R12?
Q4048-537A-R12 is a GASKET.
What parts can replace Q4048-537A-R12?
There is 1 known substitute for Q4048-537A-R12: 8-52-414. Substitute compatibility should be verified for your specific system.
What is the NSN for Q4048-537A-R12?
Q4048-537A-R12 is cataloged in the U.S. Government catalog under NSN 5330-01-372-7984. 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.