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5310PL1146543 — NUT,SELF-LOCKING,EXTENDED WASHER

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

5310PL1146543: NUT,SELF-LOCKING,EXTENDED WASHER.

NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include material: IRON ALLOY 660 OVERALL, nut_style: DOUBLE HEXAGON, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), overall_height: 0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN, hardness_rating: 39.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-483-3268, 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
5310PL1146543
NSN: 5310-01-483-3268
FSC: 5310 — Nuts and Washers
CAGE: 9009H — JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX (POL)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
nut_styleDOUBLE HEXAGON
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
overall_height0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN
hardness_rating39.0 ROCKWELL C MAXIMUM
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
washer_thickness0.060 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
surface_treatmentSILVER OVERALL
width_across_flats0.375 INCHES NOMINAL IN
nominal_thread_size0.312 INCHES IN
NSN5310-01-483-3268
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5310PL1146543 · 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
•
WASHER OUTSIDE DIAMETER: 0.535 INCHES MAXIMUM IN
•
WIDTH ACROSS FLATS: 0.375 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS 2411 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
HARDNESS RATING: 39.0 ROCKWELL C MAXIMUM
•
WASHER THICKNESS: 0.060 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5734 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5853 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN
WASHER OUTSIDE DIAMETER0.535 INCHES MAXIMUM IN
WIDTH ACROSS FLATS0.375 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2411 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
HARDNESS RATING39.0 ROCKWELL C MAXIMUM
WASHER THICKNESS0.060 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5734 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5853 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.312 INCHES IN
SUBSTITUTES & CROSS-REFERENCES 1
AS3477-11Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5310PL1146543?
5310PL1146543 is a NUT,SELF-LOCKING,EXTENDED WASHER.
What parts can replace 5310PL1146543?
There is 1 known substitute for 5310PL1146543: AS3477-11. Substitute compatibility should be verified for your specific system.
What is the NSN for 5310PL1146543?
5310PL1146543 is cataloged in the U.S. Government catalog under NSN 5310-01-483-3268. 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.