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417221PC2 — FELT,MECHANICAL,PREFORMED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

417221PC2: FELT,MECHANICAL,PREFORMED.

The FELT,MECHANICAL,PREFORMED is a the manufacturer industrial component. Key specifications include material: COTTON OVERALL, outside_diameter: 0.312 INCHES NOMINAL IN, style_designator: CIRCULAR, end_item_identification: GUN SIGHT MK15, cross-sectional_shape_style: CIRCULAR, cross_section_outside_diameter: 0.312 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-382-5679, 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
417221PC2
NSN: 5330-00-382-5679
FSC: 5330 — Packing and Gasket Materials
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialCOTTON OVERALL
outside_diameter0.312 INCHES NOMINAL IN
style_designatorCIRCULAR
end_item_identificationGUN SIGHT MK15
cross-sectional_shape_styleCIRCULAR
cross_section_outside_diameter0.312 INCHES NOMINAL IN
NSN5330-00-382-5679
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 417221PC2 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
•
STYLE DESIGNATOR: CIRCULAR
•
CROSS-SECTIONAL SHAPE STYLE: CIRCULAR
•
OUTSIDE DIAMETER: 0.312 INCHES NOMINAL IN
•
CROSS SECTION OUTSIDE DIAMETER: 0.312 INCHES NOMINAL IN
•
MATERIAL: COTTON OVERALL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORCIRCULAR
CROSS-SECTIONAL SHAPE STYLECIRCULAR
OUTSIDE DIAMETER0.312 INCHES NOMINAL IN
CROSS SECTION OUTSIDE DIAMETER0.312 INCHES NOMINAL IN
END ITEM IDENTIFICATIONGUN SIGHT MK15
MATERIALCOTTON 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

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 417221PC2?
417221PC2 is a FELT,MECHANICAL,PREFORMED.
What is the NSN for 417221PC2?
417221PC2 is cataloged in the U.S. Government catalog under NSN 5330-00-382-5679. 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.