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Technical Data Sheet
PartsTable / O-RING / 3-906
3-906 ✓ 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 WIRING HARNESS,BRANCHED is a the manufacturer industrial component. Key specifications include shape: STRAIGHT, material: STEEL OVERALL, end_style: SPRING END,PLAIN OVERALL, unit_type: TRANSMISSION LINE, body_width: 1.130 INCHES NOMINAL IN, body_height: 1.250 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-165-1981, 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
3-906
NSN: 5331-00-165-1981
FSC: 5331 — O-RING
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
shapeSTRAIGHT
materialSTEEL OVERALL
end_styleSPRING END,PLAIN OVERALL
unit_typeTRANSMISSION LINE
body_width1.130 INCHES NOMINAL IN
body_height1.250 INCHES MAXIMUM IN
body_length1.500 INCHES MAXIMUM IN
design_typeBIDIRECTIONAL
load_rating7.8 POUNDS NOMINAL LBS
thread_size0.688-18 FIRST END
constructionTUBULAR
usage_designMAIN LINE AND SECONDARY LINE TERMINAL FITTING
NSN5331-00-165-1981
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3-906 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: RUBBER FLUOROCARBON CLASS FPM
•
HARDNESS RATING: 90.0 SHORE DUROMETER A NOMINAL
•
OUTSIDE DIAMETER: 0.613 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.075 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 0.461 INCHES MINIMUM AND 0.475 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER FLUOROCARBON CLASS FPM
HARDNESS RATING90.0 SHORE DUROMETER A NOMINAL
OUTSIDE DIAMETER0.613 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.075 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
CENTER HOLE DIAMETER0.461 INCHES MINIMUM AND 0.475 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
AS568-906Interchangeable
interchangeable cross-reference
interchangeable
S0455 3-906Interchangeable
interchangeable cross-reference
interchangeable
M83248/2-906Interchangeable
interchangeable cross-reference
interchangeable
3096Interchangeable
interchangeable cross-reference
interchangeable
3906Interchangeable
interchangeable cross-reference
interchangeable
92062Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3-906?
3-906 is a WIRING HARNESS,BRANCHED.
What parts can replace 3-906?
There are 28 known substitutes for 3-906: AS568-906, S0455 3-906, M83248/2-906 and 25 more. Substitute compatibility should be verified for your specific system.
Is 3-906 still available?
3-906 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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Last verified: July 2026