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2-04057 — CONTACT,ELECTRICAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

2-04057: CONTACT,ELECTRICAL.

The CONTACT,ELECTRICAL is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY AND CONTACT, overall_length: 0.203 INCHES NOMINAL IN, mounting_method: SOLDER, overall_diameter: 0.057 INCHES NOMINAL IN, style_designator: CYLINDRICAL SHAPE, precious_material: GOLD. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-972-2801, 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
2-04057
NSN: 5330-00-972-2801
NIINs: 009722801, 013455688, 014163506
FSC: 5330 — Packing and Gasket Materials
CAGE: 77873 — ROCKFORD POWERTRAIN INC DIV POWERTRAIN ROCKFORD, INC. (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY AND CONTACT
overall_length0.203 INCHES NOMINAL IN
mounting_methodSOLDER
overall_diameter0.057 INCHES NOMINAL IN
style_designatorCYLINDRICAL SHAPE
precious_materialGOLD
surface_treatmentNICKEL AND GOLD BODY AND CONTACT
terminal_type_and_quantity1 SOLDER STUD END OPPOSITE CONTACT
precious_material_and_weight0.005 GOLD GRAINS, TROY
precious_material_and_locationBODY AND CONTACT SURFACES GOLD
general_characteristics_item_descriptionNO TECH REVIEW OR CHARACTERISTICS DATA
NSN5330-00-972-2801
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2-04057 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
SUBSTITUTES & CROSS-REFERENCES 2
D30293200-9Reference document
Same NSN cross-reference
Reference document — Secondary reference
D302932Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 2-04057?
2-04057 is a CONTACT,ELECTRICAL.
What parts can replace 2-04057?
There are 2 known substitutes for 2-04057: D30293200-9, D302932. Substitute compatibility should be verified for your specific system.
What is the NSN for 2-04057?
2-04057 is cataloged in the U.S. Government catalog under NSN 5330-00-972-2801. 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.