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3676-007-620 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3676-007-620: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: CORK AND RUBBER OVERALL, outside_diameter: 2.625 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 2.125 INCHES NOMINAL IN, end_item_identification: 1-1/4" TO 1-1/2" BOLTED BONNET GATE VALVE, cross-sectional_thickness: 0.125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-526-4196, 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
3676-007-620
NSN: 5330-01-526-4196
FSC: 5330 — Packing and Gasket Materials
CAGE: 57574 — VELAN VALVE CORP. (USA)
SPECIFICATIONS
materialCORK AND RUBBER OVERALL
outside_diameter2.625 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter2.125 INCHES NOMINAL IN
end_item_identification1-1/4" TO 1-1/2" BOLTED BONNET GATE VALVE
cross-sectional_thickness0.125 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-C-6183, TYPE 1, CLASS1.MIL-C-6183, TYPE 1, CLASS1 GRADE C MIL SPEC SINGLE MATERIAL RESPONSE OUTER RING
NSN5330-01-526-4196
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3676-007-620 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: 0.125 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-C-6183, TYPE 1, CLASS1.MIL-C-6183, TYPE 1, CLASS1 GRADE C MIL SPEC SINGLE MATERIAL RESPONSE OUTER RING
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
OUTSIDE DIAMETER: 2.625 INCHES NOMINAL IN
•
APERTURE DIAMETER: 2.125 INCHES NOMINAL IN
•
MATERIAL: CORK AND RUBBER OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.125 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-C-6183, TYPE 1, CLASS1.MIL-C-6183, TYPE 1, CLASS1 GRADE C MIL SPEC SINGLE MATERIAL RESPONSE OUTER RING
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER2.625 INCHES NOMINAL IN
APERTURE DIAMETER2.125 INCHES NOMINAL IN
END ITEM IDENTIFICATION1-1/4" TO 1-1/2" BOLTED BONNET GATE VALVE
MATERIALCORK AND RUBBER OVERALL
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 2
23399-5 NO.21/CD 53446 NOTE 3BSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
1687-002-620Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 3676-007-620?
3676-007-620 is a GASKET.
What parts can replace 3676-007-620?
There are 2 known substitutes for 3676-007-620: 23399-5 NO.21/CD 53446 NOTE 3B, 1687-002-620. Substitute compatibility should be verified for your specific system.
What is the NSN for 3676-007-620?
3676-007-620 is cataloged in the U.S. Government catalog under NSN 5330-01-526-4196. 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.