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E-3942-126A — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

E-3942-126A: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC AND CORK OVERALL, hole_diameter: 0.156 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, hardness_rating: 55.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM OVERALL, outside_diameter: 2.859 INCHES MINIMUM AND 2.891 INCHES MAXIMUM IN, style_designator: CIRCULAR, aperture_diameter: 2.234 INCHES MINIMUM AND 2.266 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-596-8059, 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
E-3942-126A
NSN: 5330-00-596-8059
FSC: 5330 — Packing and Gasket Materials
CAGE: 07524 — DOVER PUMPS & PROCESS SOLUTIONS SEGMENT INC DBA BLACKMER DIV BLACKMER (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC AND CORK OVERALL
hole_diameter0.156 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
hardness_rating55.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM OVERALL
outside_diameter2.859 INCHES MINIMUM AND 2.891 INCHES MAXIMUM IN
style_designatorCIRCULAR
aperture_diameter2.234 INCHES MINIMUM AND 2.266 INCHES MAXIMUM IN
bolt_hole_quantity3
bolt_circle_diameter2.562 INCHES NOMINAL IN
cross-sectional_thickness0.031 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-C-6183,TY 2,CL 1,GR B MIL SPEC ALL MATERIAL RESPONSES OVERALL
NSN5330-00-596-8059
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: E-3942-126A 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
•
HARDNESS RATING: 55.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM OVERALL
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-C-6183,TY 2,CL 1,GR B MIL SPEC ALL MATERIAL RESPONSES OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
OUTSIDE DIAMETER: 2.859 INCHES MINIMUM AND 2.891 INCHES MAXIMUM IN
•
APERTURE DIAMETER: 2.234 INCHES MINIMUM AND 2.266 INCHES MAXIMUM IN
•
BOLT HOLE QUANTITY: 3
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
HARDNESS RATING55.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM OVERALL
STYLE DESIGNATORCIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-C-6183,TY 2,CL 1,GR B MIL SPEC ALL MATERIAL RESPONSES OVERALL
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER2.859 INCHES MINIMUM AND 2.891 INCHES MAXIMUM IN
APERTURE DIAMETER2.234 INCHES MINIMUM AND 2.266 INCHES MAXIMUM IN
BOLT HOLE QUANTITY3
BOLT CIRCLE DIAMETER2.562 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC AND CORK OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 E-3942-126A?
E-3942-126A is a GASKET.
What is the NSN for E-3942-126A?
E-3942-126A is cataloged in the U.S. Government catalog under NSN 5330-00-596-8059. 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.