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Technical Data Sheet
PartsTable / MRO / 3-3-12
3-3-12 ✓ Verified by PartsTable
Zyxel · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include depth: 12.062 INCHES NOMINAL IN, phase: SINGLE, shape: STRAIGHT, width: 33.125 INCHES NOMINAL IN, height: 18.188 INCHES NOMINAL IN, material: STEEL BASE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-187-2957, 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
MRO→ MRO_GENERAL→ 3-3-12
NSN: 5310-00-187-2957
FSC: 5310
CAGE: 65358 — TRACKMOBILE LLC (USA)
SPECIFICATIONS
depth12.062 INCHES NOMINAL IN
phaseSINGLE
shapeSTRAIGHT
width33.125 INCHES NOMINAL IN
height18.188 INCHES NOMINAL IN
materialSTEEL BASE
tip_typeCURVED
thickness0.203 INCHES NOMINAL IN
back_width19.500 INCHES NOMINAL IN
body_styleCYLINDRICAL (SCREWED)
body_width0.875 INCHES NOMINAL IN
bore_shapeSTRAIGHT
NSN5310-00-187-2957
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3-3-12 · Zyxel ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 1.125 INCHES NOMINAL IN
•
MATERIAL: CORK OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
THICKNESS: 0.203 INCHES NOMINAL IN
•
OVERALL DIAMETER: 2.000 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER1.125 INCHES NOMINAL IN
MATERIALCORK OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.203 INCHES NOMINAL IN
OVERALL DIAMETER2.000 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
97-1/2INInterchangeable
interchangeable cross-reference
interchangeable
A50498-BZ-1-AInterchangeable
interchangeable cross-reference
interchangeable
A-A-50498Interchangeable
interchangeable cross-reference
interchangeable
413752C91Interchangeable
interchangeable cross-reference
interchangeable
70050Interchangeable
interchangeable cross-reference
interchangeable
0350-9410LUPInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3-3-12?
3-3-12 is a CONNECTOR,RECEPTACLE,ELECTRICAL manufactured by Zyxel. It is classified as a MRO (MRO_GENERAL).
What parts can replace 3-3-12?
There are 18 known substitutes for 3-3-12: 97-1/2IN, A50498-BZ-1-A, A-A-50498 and 15 more. Substitute compatibility should be verified for your specific system.
Is 3-3-12 still available?
3-3-12 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026