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Technical Data Sheet
PartsTable / COMPONENT / 639-3915
639-3915 ✓ 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

RESISTOR,FIXED,WIRE WOUND,INDUCT. Key specifications include material: ALUMINUM ALLOY, overall_width: 1.450 INCHES NOMINAL IN, overall_length: 2.050 INCHES NOMINAL IN, end_item_identification: ASDS RESIDUAL, part_name_assigned_by_controlling_agency: BLOCK,MID SECTION,ICAD. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-509-6969, 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
639-3915
NSN: 5340-01-509-6969
FSC: 5340
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
overall_width1.450 INCHES NOMINAL IN
overall_length2.050 INCHES NOMINAL IN
special_featuresFILE, ENDODONTIC, RISPISONIC; 19MM LENGTH; SIZE 1; COLOR CODE WHITE; PACKAGE OF 6; FOR USE WITH END ITEM HANDPIECE,DENTAL, NSN 6520-01-462-0759 MM
end_item_identificationASDS RESIDUAL
part_name_assigned_by_controlling_agencyBLOCK,MID SECTION,ICAD
NSN5340-01-509-6969
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 639-3915 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
•
MATERIAL: ALUMINUM ALLOY
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH2.050 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY
OVERALL WIDTH1.450 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYBLOCK,MID SECTION,ICAD
END ITEM IDENTIFICATIONASDS RESIDUAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
6520NCM071788Interchangeable
interchangeable cross-reference
interchangeable
RISPISONIC 19 MM SIZE 1Interchangeable
interchangeable cross-reference
interchangeable
4642Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 639-3915?
639-3915 is a RESISTOR,FIXED,WIRE WOUND,INDUCT.
What parts can replace 639-3915?
There are 3 known substitutes for 639-3915: 6520NCM071788, RISPISONIC 19 MM SIZE 1, 4642. Substitute compatibility should be verified for your specific system.
What is the NSN for 639-3915?
639-3915 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-509-6969. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026