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Technical Data Sheet
PartsTable / COMPONENT / 639870
639870 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The GASKET is a the manufacturer industrial component. Key specifications include material: CELLULOSE OVERALL, cross-sectional_thickness: 0.011 INCHES NOMINAL IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-354-3778, 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
639870
NSN: 5330-00-354-3778
FSC: 5330
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
materialCELLULOSE OVERALL
cross-sectional_thickness0.011 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-00-354-3778
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 639870 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 SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
CROSS-SECTIONAL THICKNESS: 0.011 INCHES NOMINAL IN
•
MATERIAL: CELLULOSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
CROSS-SECTIONAL THICKNESS0.011 INCHES NOMINAL IN
MATERIALCELLULOSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
43110Interchangeable
Tweezers,craftsman's
interchangeable
43130Interchangeable
Tweezers,craftsman's
interchangeable
EROP3CSAInterchangeable
Tweezers,craftsman's
interchangeable
960SInterchangeable
interchangeable cross-reference
interchangeable
4056BInterchangeable
interchangeable cross-reference
interchangeable
PD5180-00-313-9496Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 639870?
639870 is a GASKET.
What parts can replace 639870?
There are 14 known substitutes for 639870: 43110, 43130, EROP3CSA and 11 more. Substitute compatibility should be verified for your specific system.
Is 639870 still available?
639870 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026