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E-3291 PIECE 72 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

E-3291 PIECE 72: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: PAPER AND GLUE OVERALL, slot_radius: 0.3175 INCHES NOMINAL IN, slot_quantity: 12, outside_diameter: 11.813 INCHES MINIMUM AND 11.875 INCHES MAXIMUM IN, special_features: SLOT WIDTH 0.516 IN.; SLOT CIRCLE 11.250 IN. DIA; SIX HOLES,2.000 IN.

DIA EQUALLY SPACED ON 6.000 CIRCLE DIA IN, style_designator: CIRCULAR WITH SLOTS, WITHOUT BOLT HOLES, WITH RADIUS APERTURE SHAPE. This part is cataloged in the U.S. Government catalog under NSN 5330-01-201-9426, 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-3291 PIECE 72
NSN: 5330-01-201-9426
FSC: 5330 — Packing and Gasket Materials
CAGE: 07524 — DOVER PUMPS & PROCESS SOLUTIONS SEGMENT INC DBA BLACKMER DIV BLACKMER (USA)
SPECIFICATIONS
materialPAPER AND GLUE OVERALL
slot_radius0.3175 INCHES NOMINAL IN
slot_quantity12
outside_diameter11.813 INCHES MINIMUM AND 11.875 INCHES MAXIMUM IN
special_featuresSLOT WIDTH 0.516 IN.; SLOT CIRCLE 11.250 IN. DIA; SIX HOLES,2.000 IN. DIA EQUALLY SPACED ON 6.000 CIRCLE DIA IN
style_designatorCIRCULAR WITH SLOTS, WITHOUT BOLT HOLES, WITH RADIUS APERTURE SHAPE
aperture_diameter3.250 INCHES NOMINAL IN
surface_treatmentRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR BOTH SIDES
cross-sectional_thickness0.020 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationVELUMOID FSCM 01212 MFR REF SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-201-9426
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: E-3291 PIECE 72 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: 0.020 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN
•
SLOT QUANTITY: 12
•
STYLE DESIGNATOR: CIRCULAR WITH SLOTS, WITHOUT BOLT HOLES, WITH RADIUS APERTURE SHAPE
•
MATERIAL DOCUMENT AND CLASSIFICATION: VELUMOID FSCM 01212 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
OUTSIDE DIAMETER: 11.813 INCHES MINIMUM AND 11.875 INCHES MAXIMUM IN
•
APERTURE DIAMETER: 3.250 INCHES NOMINAL IN
•
SLOT RADIUS: 0.3175 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.020 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN
SLOT QUANTITY12
STYLE DESIGNATORCIRCULAR WITH SLOTS, WITHOUT BOLT HOLES, WITH RADIUS APERTURE SHAPE
MATERIAL DOCUMENT AND CLASSIFICATIONVELUMOID FSCM 01212 MFR REF SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER11.813 INCHES MINIMUM AND 11.875 INCHES MAXIMUM IN
APERTURE DIAMETER3.250 INCHES NOMINAL IN
SLOT RADIUS0.3175 INCHES NOMINAL IN
SPECIAL FEATURESSLOT WIDTH 0.516 IN.; SLOT CIRCLE 11.250 IN. DIA; SIX HOLES,2.000 IN. DIA EQUALLY SPACED ON 6.000 CIRCLE DIA IN
SURFACE TREATMENTRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR BOTH SIDES
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 E-3291 PIECE 72?
E-3291 PIECE 72 is a GASKET.
What is the NSN for E-3291 PIECE 72?
E-3291 PIECE 72 is cataloged in the U.S. Government catalog under NSN 5330-01-201-9426. 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.