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2659034-1 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

2659034-1: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER CHLOROPRENE CLASS CR OVERALL, hole_diameter: 0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 4.500 INCHES NOMINAL IN, aperture_width: 2.960 INCHES MINIMUM AND 3.040 INCHES MAXIMUM IN, overall_length: 5.750 INCHES NOMINAL IN, aperture_length: 4.210 INCHES MINIMUM AND 4.290 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-899-0494, 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
2659034-1
NSN: 5330-00-899-0494
FSC: 5330 — Packing and Gasket Materials
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR OVERALL
hole_diameter0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
overall_width4.500 INCHES NOMINAL IN
aperture_width2.960 INCHES MINIMUM AND 3.040 INCHES MAXIMUM IN
overall_length5.750 INCHES NOMINAL IN
aperture_length4.210 INCHES MINIMUM AND 4.290 INCHES MAXIMUM IN
hardness_rating55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM OVERALL
inside_corner_radius0.030 INCHES NOMINAL IN
outside_corner_radius1.280 INCHES MINIMUM AND 1.340 INCHES MAXIMUM IN
material_document_and_classificationASTM D2000 2BC620A1B1E3F1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
outside_edge_to_bolt_hole_center_distance_along_width1.235 INCHES MINIMUM AND 1.265 INCHES MAXIMUM IN
center_to_center_distance_between_bolt_holes_along_width2.000 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
NSN5330-00-899-0494
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2659034-1 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
•
INSIDE CORNER RADIUS: 0.030 INCHES NOMINAL IN
•
HARDNESS RATING: 55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM D2000 2BC620A1B1E3F1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
APERTURE WIDTH: 2.960 INCHES MINIMUM AND 3.040 INCHES MAXIMUM IN
•
APERTURE LENGTH: 4.210 INCHES MINIMUM AND 4.290 INCHES MAXIMUM IN
•
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH: 1.750 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
TECHNICAL CHARACTERISTICS
INSIDE CORNER RADIUS0.030 INCHES NOMINAL IN
HARDNESS RATING55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D2000 2BC620A1B1E3F1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH5.750 INCHES NOMINAL IN
OVERALL WIDTH4.500 INCHES NOMINAL IN
APERTURE WIDTH2.960 INCHES MINIMUM AND 3.040 INCHES MAXIMUM IN
APERTURE LENGTH4.210 INCHES MINIMUM AND 4.290 INCHES MAXIMUM IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH1.750 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH2.000 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
OUTSIDE CORNER RADIUS1.280 INCHES MINIMUM AND 1.340 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: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2659034-1?
2659034-1 is a GASKET.
What is the NSN for 2659034-1?
2659034-1 is cataloged in the U.S. Government catalog under NSN 5330-00-899-0494. 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.