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2S1439 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

2S1439: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include overall_width: 3.380 INCHES NOMINAL IN, aperture_diameter: 1.688 INCHES NOMINAL IN, bolt_circle_diameter: 2.500 INCHES NOMINAL IN, inside_corner_radius: 0.440 INCHES NOMINAL IN, cross-sectional_thickness: 0.031 INCHES NOMINAL IN, side_radius_from_gasket_center: 1.125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-757-6470, 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
2S1439
NSN: 5330-00-757-6470
FSC: 5330 — Packing and Gasket Materials
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
overall_width3.380 INCHES NOMINAL IN
aperture_diameter1.688 INCHES NOMINAL IN
bolt_circle_diameter2.500 INCHES NOMINAL IN
inside_corner_radius0.440 INCHES NOMINAL IN
cross-sectional_thickness0.031 INCHES NOMINAL IN
side_radius_from_gasket_center1.125 INCHES NOMINAL IN
NSN5330-00-757-6470
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2S1439 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: 0.440 INCHES NOMINAL IN
•
SIDE RADIUS FROM GASKET CENTER: 1.125 INCHES NOMINAL IN
•
APERTURE DIAMETER: 1.688 INCHES NOMINAL IN
•
BOLT CIRCLE DIAMETER: 2.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
INSIDE CORNER RADIUS0.440 INCHES NOMINAL IN
SIDE RADIUS FROM GASKET CENTER1.125 INCHES NOMINAL IN
OVERALL WIDTH3.380 INCHES NOMINAL IN
APERTURE DIAMETER1.688 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER2.500 INCHES NOMINAL 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2S1439?
2S1439 is a GASKET.
What is the NSN for 2S1439?
2S1439 is cataloged in the U.S. Government catalog under NSN 5330-00-757-6470. 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.