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5859866-120 — CONNECTOR,RECEPTACLE,ELECTRICAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

5859866-120: CONNECTOR,RECEPTACLE,ELECTRICAL.

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include material: RUBBER BUTADIENE-STYRENE CLASS SBR OVERALL, body_style: STRAIGHT SHAPE, EXTERNAL COUPLING, thread_class: 2A A, hole_diameter: 0.311 INCHES MINIMUM AND 0.324 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 2.000 INCHES NOMINAL IN, aperture_width: 2.740 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-275-1966, 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
5859866-120
NSN: 5330-01-275-1966
NIINs: 012751966, 012751996
FSC: 5330 — Packing and Gasket Materials
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialRUBBER BUTADIENE-STYRENE CLASS SBR OVERALL
body_styleSTRAIGHT SHAPE, EXTERNAL COUPLING
thread_class2A A
hole_diameter0.311 INCHES MINIMUM AND 0.324 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
overall_width2.000 INCHES NOMINAL IN
aperture_width2.740 INCHES NOMINAL IN
overall_height2.000 INCHES NOMINAL IN
overall_length1.662 INCHES MAXIMUM IN
aperture_length11.360 INCHES NOMINAL IN
style_designatorNON-CIRCULAR
thread_directionRIGHT-HAND
bolt_hole_quantity16
NSN5330-01-275-1966
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5859866-120 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 THICKNESS: 0.125 INCHES NOMINAL IN
•
OUTSIDE EDGE TO INSIDE EDGE SMALLEST DISTANCE ALONG WIDTH: 0.630 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NON-CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-900 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
APERTURE WIDTH: 2.740 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.125 INCHES NOMINAL IN
OUTSIDE EDGE TO INSIDE EDGE SMALLEST DISTANCE ALONG WIDTH0.630 INCHES NOMINAL IN
STYLE DESIGNATORNON-CIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-900 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH12.620 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OVERALL WIDTH4.000 INCHES NOMINAL IN
APERTURE WIDTH2.740 INCHES NOMINAL IN
APERTURE LENGTH11.360 INCHES NOMINAL IN
BOLT HOLE QUANTITY16
SUBSTITUTES & CROSS-REFERENCES 1
14552029-1Reference 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 5859866-120?
5859866-120 is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace 5859866-120?
There is 1 known substitute for 5859866-120: 14552029-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 5859866-120?
5859866-120 is cataloged in the U.S. Government catalog under NSN 5330-01-275-1966. This indicates validated use in U.S. government and defense supply chains.
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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.