PartsTable
Technical Data Sheet
311392 ✓ Verified by PartsTable
· NUT WASHER
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

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL RETAINER, bore_shape: STRAIGHT, bore_diameter: 45.00 MILLIMETERS NOMINAL MM, overall_width: 29.00 MILLIMETERS NOMINAL MM, load_direction: RADIAL, surface_finish: GROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-208-0911, 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
311392
NSN: 5310-00-208-0911
FSC: 5310
CAGE: 56232 — LOCKHEED MARTIN CORPORATION DIV RMS - MITCHEL FIELD (USA)
SPECIFICATIONS
materialSTEEL RETAINER
bore_shapeSTRAIGHT
bore_diameter45.00 MILLIMETERS NOMINAL MM
overall_width29.00 MILLIMETERS NOMINAL MM
load_directionRADIAL
surface_finishGROUND
lubrication_materialLUBRICANT
overall_outside_diameter20.00 MILLIMETERS NOMINAL MM
internal_fit-up_designationSTANDARD
retainer_fabrication_methodPRESSED
standard_tolerance_designationABEC NO.1
NSN5310-00-208-0911
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 311392 · OEM ⚠ 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
THREAD QUANTITY PER INCH: 24
THREAD SERIES: UNF
NOMINAL THREAD SIZE: 0.312 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 30303 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT: PASSIVATE OVERALL
NUT STYLE: HEXAGON
WIDTH ACROSS FLATS: 0.500 INCHES NOMINAL IN
NUT HEIGHT: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH24
THREAD SERIESUNF
NOMINAL THREAD SIZE0.312 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 30303 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
NUT STYLEHEXAGON
WIDTH ACROSS FLATS0.500 INCHES NOMINAL IN
NUT HEIGHT0.250 INCHES NOMINAL IN
MATERIALSTEEL COMP 303 OVERALL
THREAD CLASS3B
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
48123HInterchangeable
interchangeable cross-reference
interchangeable
311392Interchangeable
interchangeable cross-reference
interchangeable
811180Interchangeable
interchangeable cross-reference
interchangeable
901409Interchangeable
interchangeable cross-reference
interchangeable
409MInterchangeable
interchangeable cross-reference
interchangeable
1409Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 311392?
311392 is a BEARING,BALL,ANNULAR.
What parts can replace 311392?
There are 9 known substitutes for 311392: 48123H, 311392, 811180 and 6 more. Substitute compatibility should be verified for your specific system.
Is 311392 still available?
311392 is currently cancelled.
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