PartsTable
Technical Data Sheet
A2043 ✓ 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 GEAR,WORM WHEEL is a the manufacturer industrial component. Key specifications include material: STEEL, mesh_size: 250.0, thickness: 0.032 INCHES NOMINAL IN, wire_diameter: 0.00160 INCHES NOMINAL IN, style_designator: ROUND (BASICALLY FLAT), surface_treatment: PASSIVATE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-275-2087, 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
A2043
NSN: 5310-00-275-2087
FSC: 5310
CAGE: 24692 — HARTZELL PROPELLER LLC (USA)
SPECIFICATIONS
materialSTEEL
mesh_size250.0
thickness0.032 INCHES NOMINAL IN
wire_diameter0.00160 INCHES NOMINAL IN
style_designatorROUND (BASICALLY FLAT)
surface_treatmentPASSIVATE
filtering_media_designMESH
element_outside_diameter0.551 INCHES MINIMUM AND 0.571 INCHES MAXIMUM IN
NSN5310-00-275-2087
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A2043 · 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 SERIES: UNF
NUT STYLE: HEXAGON
NOMINAL THREAD SIZE: 0.375 INCHES IN
BEARING SURFACE TYPE: FLAT
SURFACE TREATMENT: CADMIUM OVERALL
NUT HEIGHT: 0.416 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
MATERIAL: STEEL OVERALL
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIESUNF
NUT STYLEHEXAGON
NOMINAL THREAD SIZE0.375 INCHES IN
BEARING SURFACE TYPEFLAT
SURFACE TREATMENTCADMIUM OVERALL
NUT HEIGHT0.416 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3B
TEMP RATING250.0 FAHRENHEIT NOMINAL DEGF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
3897Interchangeable
interchangeable cross-reference
interchangeable
A2043Interchangeable
interchangeable cross-reference
interchangeable
5310PL0530873Interchangeable
interchangeable cross-reference
interchangeable
MS21044N6Interchangeable
interchangeable cross-reference
interchangeable
5310PL2091896Interchangeable
interchangeable cross-reference
interchangeable
27FH-624Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A2043?
A2043 is a GEAR,WORM WHEEL.
What parts can replace A2043?
There are 15 known substitutes for A2043: 3897, A2043, 5310PL0530873 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A2043?
A2043 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-275-2087. This indicates validated use in U.S. government and defense supply chains.
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