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WSI4-3 — NUT,SELF-LOCKING,PLATE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

WSI4-3: NUT,SELF-LOCKING,PLATE.

The NUT,SELF-LOCKING,PLATE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061 OVERALL, nut_style: PLATE, nut_height: 3.000 INCHES NOMINAL IN, nut_length: 0.985 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNF. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-046-3286, 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
WSI4-3
NSN: 5310-01-046-3286
FSC: 5310 — Nuts and Washers
CAGE: 04169 — ATLAS CORP WESTERN SKY INDUSTRIES DIV (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061 OVERALL
nut_stylePLATE
nut_height3.000 INCHES NOMINAL IN
nut_length0.985 INCHES NOMINAL IN
thread_class2B
thread_seriesUNF
locking_featurePREVAILING TORQUE ALL METAL DESIGN
plate_thickness0.060 INCHES NOMINAL IN
thread_directionRIGHT-HAND
nominal_thread_size0.190 INCHES IN
mounting_hole_diameter0.098 INCHES NOMINAL IN
nut_mounting_provisionSTRAIGHT HOLES
NSN5310-01-046-3286
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: WSI4-3 · 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
•
PLATE THICKNESS: 0.060 INCHES NOMINAL IN
•
NUT LENGTH: 0.985 INCHES NOMINAL IN
•
THREAD SERIES: UNF
•
MOUNTING HOLE ARRANGEMENT STYLE: 2 HOLES
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-A-12545 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MOUNTING HOLE DIAMETER: 0.098 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.190 INCHES IN
TECHNICAL CHARACTERISTICS
PLATE THICKNESS0.060 INCHES NOMINAL IN
NUT LENGTH0.985 INCHES NOMINAL IN
THREAD SERIESUNF
MOUNTING HOLE ARRANGEMENT STYLE2 HOLES
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-A-12545 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MOUNTING HOLE DIAMETER0.098 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.190 INCHES IN
DISTANCE FROM APERTURE CENTER TO MOUNTING HOLE CENTER0.344 INCHES NOMINAL IN
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 2
WS1-4-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
BACN10TL3-3Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is WSI4-3?
WSI4-3 is a NUT,SELF-LOCKING,PLATE.
What parts can replace WSI4-3?
There are 2 known substitutes for WSI4-3: WS1-4-3, BACN10TL3-3. Substitute compatibility should be verified for your specific system.
What is the NSN for WSI4-3?
WSI4-3 is cataloged in the U.S. Government catalog under NSN 5310-01-046-3286. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
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.