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03A163-3-140 — NUT,SELF-LOCKING,PLATE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

03A163-3-140: NUT,SELF-LOCKING,PLATE.

The NUT,SELF-LOCKING,PLATE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061 NUT, surface_treatment: ANODIZE NUT, nut_mounting_provision: STRAIGHT HOLES, material_document_and_classification: MIL-A-12545 MIL SPEC SINGLE MATERIAL RESPONSE NUT, surface_treatment_document_and_classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE NUT. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-330-5231, 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
03A163-3-140
NSN: 5310-01-330-5231
FSC: 5310 — Nuts and Washers
CAGE: 76823 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN IS DIV NORTHROP GRUMMAN AERONAUTICS SYSTEMS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061 NUT
surface_treatmentANODIZE NUT
nut_mounting_provisionSTRAIGHT HOLES
material_document_and_classificationMIL-A-12545 MIL SPEC SINGLE MATERIAL RESPONSE NUT
surface_treatment_document_and_classificationMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE NUT
NSN5310-01-330-5231
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 03A163-3-140 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE NUT
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-A-12545 MIL SPEC SINGLE MATERIAL RESPONSE NUT
•
SURFACE TREATMENT: ANODIZE NUT
•
MATERIAL: ALUMINUM ALLOY 6061 NUT
•
NUT MOUNTING PROVISION: STRAIGHT HOLES
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE NUT
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-A-12545 MIL SPEC SINGLE MATERIAL RESPONSE NUT
SURFACE TREATMENTANODIZE NUT
MATERIALALUMINUM ALLOY 6061 NUT
MATERIALSTEEL CORROSION RESISTING LOCKING INSERT
NUT MOUNTING PROVISIONSTRAIGHT HOLES
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
WSI-4-14NWReference document
Same NSN cross-reference
Reference document — Secondary reference
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 03A163-3-140?
03A163-3-140 is a NUT,SELF-LOCKING,PLATE.
What parts can replace 03A163-3-140?
There is 1 known substitute for 03A163-3-140: WSI-4-14NW. Substitute compatibility should be verified for your specific system.
What is the NSN for 03A163-3-140?
03A163-3-140 is cataloged in the U.S. Government catalog under NSN 5310-01-330-5231. 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.