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55-70-8M TCN — SEAL,PLAIN

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

55-70-8M TCN: SEAL,PLAIN.

The SEAL,PLAIN is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE NITRILE OVERALL, seal_width: 9.00 MILLIMETERS NOMINAL MM, housing_bore_diameter: 70.00 MILLIMETERS NOMINAL MM, accommodated_shaft_diameter: 55.00 MILLIMETERS NOMINAL MM, part_name_assigned_by_controlling_agency: SEAL,ROTARY LIP. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-663-7030, 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
55-70-8M TCN
NSN: 5330-01-663-7030
FSC: 5330 — Packing and Gasket Materials
CAGE: 48482 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV ENGINEERED POLYMER SYSTEMS (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE NITRILE OVERALL
seal_width9.00 MILLIMETERS NOMINAL MM
housing_bore_diameter70.00 MILLIMETERS NOMINAL MM
accommodated_shaft_diameter55.00 MILLIMETERS NOMINAL MM
part_name_assigned_by_controlling_agencySEAL,ROTARY LIP
NSN5330-01-663-7030
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 55-70-8M TCN 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
•
SEAL WIDTH: 9.00 MILLIMETERS NOMINAL MM
•
HOUSING BORE DIAMETER: 70.00 MILLIMETERS NOMINAL MM
•
ACCOMMODATED SHAFT DIAMETER: 55.00 MILLIMETERS NOMINAL MM
•
MATERIAL: RUBBER BUTADIENE NITRILE OVERALL
TECHNICAL CHARACTERISTICS
SEAL WIDTH9.00 MILLIMETERS NOMINAL MM
HOUSING BORE DIAMETER70.00 MILLIMETERS NOMINAL MM
ACCOMMODATED SHAFT DIAMETER55.00 MILLIMETERS NOMINAL MM
PART NAME ASSIGNED BY CONTROLLING AGENCYSEAL,ROTARY LIP
MATERIALRUBBER BUTADIENE NITRILE 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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 55-70-8M TCN?
55-70-8M TCN is a SEAL,PLAIN.
What is the NSN for 55-70-8M TCN?
55-70-8M TCN is cataloged in the U.S. Government catalog under NSN 5330-01-663-7030. 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.