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298955PC4 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

298955PC4: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include hole_diameter: 0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 3.485 INCHES MINIMUM AND 3.515 INCHES MAXIMUM IN, aperture_width: 1.985 INCHES MINIMUM AND 2.015 INCHES MAXIMUM IN, overall_length: 4.990 INCHES MINIMUM AND 6.010 INCHES MAXIMUM IN, aperture_length: 4.485 INCHES MINIMUM AND 4.515 INCHES MAXIMUM IN, outside_corner_radius: 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-290-9840, 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
298955PC4
NSN: 5330-00-290-9840
FSC: 5330 — Packing and Gasket Materials
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
hole_diameter0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width3.485 INCHES MINIMUM AND 3.515 INCHES MAXIMUM IN
aperture_width1.985 INCHES MINIMUM AND 2.015 INCHES MAXIMUM IN
overall_length4.990 INCHES MINIMUM AND 6.010 INCHES MAXIMUM IN
aperture_length4.485 INCHES MINIMUM AND 4.515 INCHES MAXIMUM IN
outside_corner_radius0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
cross-sectional_thickness0.031 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-A-17472 MIL SPEC ALL MATERIAL RESPONSES OVERALL
center_to_center_distance_between_bolt_holes_along_width2.740 INCHES MINIMUM AND 2.760 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
center_to_center_distance_between_bolt_holes_along_length2.615 INCHES MINIMUM AND 2.635 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
NSN5330-00-290-9840
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 298955PC4 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-A-17472 MIL SPEC ALL MATERIAL RESPONSES OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
APERTURE WIDTH: 1.985 INCHES MINIMUM AND 2.015 INCHES MAXIMUM IN
•
APERTURE LENGTH: 4.485 INCHES MINIMUM AND 4.515 INCHES MAXIMUM IN
•
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH: 2.615 INCHES MINIMUM AND 2.635 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-A-17472 MIL SPEC ALL MATERIAL RESPONSES OVERALL
OVERALL LENGTH4.990 INCHES MINIMUM AND 6.010 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OVERALL WIDTH3.485 INCHES MINIMUM AND 3.515 INCHES MAXIMUM IN
APERTURE WIDTH1.985 INCHES MINIMUM AND 2.015 INCHES MAXIMUM IN
APERTURE LENGTH4.485 INCHES MINIMUM AND 4.515 INCHES MAXIMUM IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH2.615 INCHES MINIMUM AND 2.635 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH2.740 INCHES MINIMUM AND 2.760 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
OUTSIDE CORNER RADIUS0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
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 298955PC4?
298955PC4 is a GASKET.
What is the NSN for 298955PC4?
298955PC4 is cataloged in the U.S. Government catalog under NSN 5330-00-290-9840. 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.