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354330-3 — FELT,MECHANICAL,PREFORMED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

354330-3: FELT,MECHANICAL,PREFORMED.

The FELT,MECHANICAL,PREFORMED is a the manufacturer industrial component. Key specifications include material: WOOL OVERALL, joint_type: BUTT ENDS, cross-sectional_width: 0.125 INCHES NOMINAL IN, cross-sectional_height: 0.125 INCHES NOMINAL IN, cross-sectional_shape_style: SQUARE, material_document_and_classification: MIL-F-5656 TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-587-1855, 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
354330-3
NSN: 5330-00-587-1855
FSC: 5330 — Packing and Gasket Materials
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
materialWOOL OVERALL
joint_typeBUTT ENDS
cross-sectional_width0.125 INCHES NOMINAL IN
cross-sectional_height0.125 INCHES NOMINAL IN
cross-sectional_shape_styleSQUARE
material_document_and_classificationMIL-F-5656 TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-587-1855
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 354330-3 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 HEIGHT: 0.125 INCHES NOMINAL IN
•
CROSS-SECTIONAL WIDTH: 0.125 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-F-5656 TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE
•
MATERIAL: WOOL OVERALL
•
JOINT TYPE: BUTT ENDS
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.125 INCHES NOMINAL IN
CROSS-SECTIONAL WIDTH0.125 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-F-5656 TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESQUARE
MATERIALWOOL OVERALL
JOINT TYPEBUTT ENDS
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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 354330-3?
354330-3 is a FELT,MECHANICAL,PREFORMED.
What is the NSN for 354330-3?
354330-3 is cataloged in the U.S. Government catalog under NSN 5330-00-587-1855. 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.