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WSI-332-A20 — NUT,SELF-LOCKING,PLATE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

WSI-332-A20: NUT,SELF-LOCKING,PLATE.

The NUT,SELF-LOCKING,PLATE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2014 OVERALL, nut_style: PLATE, nut_height: 2.410 INCHES MINIMUM AND 2.470 INCHES MAXIMUM IN, nut_length: 2.450 INCHES MINIMUM AND 2.550 INCHES MAXIMUM IN, plate_width: 1.460 INCHES MINIMUM AND 1.570 INCHES MAXIMUM IN, thread_class: 2B. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-111-3558, 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
WSI-332-A20
NSN: 5310-01-111-3558
FSC: 5310 — Nuts and Washers
CAGE: 04169 — ATLAS CORP WESTERN SKY INDUSTRIES DIV (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2014 OVERALL
nut_stylePLATE
nut_height2.410 INCHES MINIMUM AND 2.470 INCHES MAXIMUM IN
nut_length2.450 INCHES MINIMUM AND 2.550 INCHES MAXIMUM IN
plate_width1.460 INCHES MINIMUM AND 1.570 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNF
locking_featurePREVAILING TORQUE WITH METALLIC INSERT
plate_thickness0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
special_features0.063 IN. MIN AND 0.070 IN. MAX DIA INSPECTION HOLE LOCATED ON NUT LENGTH IN
thread_directionRIGHT-HAND
surface_treatmentANODIZE OR CHROMATE OVERALL
NSN5310-01-111-3558
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: WSI-332-A20 · 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: 0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
•
NUT LENGTH: 2.450 INCHES MINIMUM AND 2.550 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625,TY 1 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-C-5541 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNF
•
PLATE WIDTH: 1.460 INCHES MINIMUM AND 1.570 INCHES MAXIMUM IN
•
MOUNTING HOLE ARRANGEMENT STYLE: 2 HOLES
•
DISTANCE FROM BASE TO CENTER OF APERTURE: 0.290 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-367,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
PLATE THICKNESS0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
NUT LENGTH2.450 INCHES MINIMUM AND 2.550 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TY 1 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-C-5541 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
THREAD SERIESUNF
PLATE WIDTH1.460 INCHES MINIMUM AND 1.570 INCHES MAXIMUM IN
MOUNTING HOLE ARRANGEMENT STYLE2 HOLES
DISTANCE FROM BASE TO CENTER OF APERTURE0.290 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-367,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MOUNTING HOLE DIAMETER0.128 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
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 1
BACN10GH3-A20Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is WSI-332-A20?
WSI-332-A20 is a NUT,SELF-LOCKING,PLATE.
What parts can replace WSI-332-A20?
There is 1 known substitute for WSI-332-A20: BACN10GH3-A20. Substitute compatibility should be verified for your specific system.
What is the NSN for WSI-332-A20?
WSI-332-A20 is cataloged in the U.S. Government catalog under NSN 5310-01-111-3558. 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.