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SC2040C — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

SC2040C: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: STEEL CORROSION RESISTING, design_type: MACHINED, overall_length: 0.522 INCHES NOMINAL IN, special_features: 3.5 INCH BEADED CHAIN, BRASS, NICKEL PLATING IN, surface_treatment: PASSIVATE, width_across_flats: 0.312 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-705-5934, 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
SC2040C
NSN: 5340-01-705-5934
FSC: 5340 — Hardware, Commercial
CAGE: 3FKR5 — INFINITE ELECTRONICS INTERNATIONAL, INC. (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
design_typeMACHINED
overall_length0.522 INCHES NOMINAL IN
special_features3.5 INCH BEADED CHAIN, BRASS, NICKEL PLATING IN
surface_treatmentPASSIVATE
width_across_flats0.312 INCHES NOMINAL IN
supplementary_featuresGASKET-SILICONE
part_name_assigned_by_controlling_agency2.4MM MALE OEN CIRCUIT CONNECTOR CAP MM
NSN5340-01-705-5934
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: SC2040C 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
•
WIDTH ACROSS FLATS: 0.312 INCHES NOMINAL IN
•
DESIGN TYPE: MACHINED
•
SUPPLEMENTARY FEATURES: GASKET-SILICONE
•
SURFACE TREATMENT: PASSIVATE
•
MATERIAL: STEEL CORROSION RESISTING
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.312 INCHES NOMINAL IN
DESIGN TYPEMACHINED
SUPPLEMENTARY FEATURESGASKET-SILICONE
OVERALL LENGTH0.522 INCHES NOMINAL IN
SPECIAL FEATURES3.5 INCH BEADED CHAIN, BRASS, NICKEL PLATING IN
SURFACE TREATMENTPASSIVATE
PART NAME ASSIGNED BY CONTROLLING AGENCY2.4MM MALE OEN CIRCUIT CONNECTOR CAP MM
MATERIALSTEEL CORROSION RESISTING
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is SC2040C?
SC2040C is a CAP,PROTECTIVE,DUST AND MOISTURE.
What is the NSN for SC2040C?
SC2040C is cataloged in the U.S. Government catalog under NSN 5340-01-705-5934. 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.