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6105345 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6105345: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 OVERALL, thickness: 0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN, hole_diameter: 0.375 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN, hardness_rating: 27.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM, overall_diameter: 0.683 INCHES MINIMUM AND 0.693 INCHES MAXIMUM IN, surface_treatment: CADMIUM AND CHROMATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-271-8401, 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
6105345
NSN: 5310-01-271-8401
FSC: 5310 — Nuts and Washers
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 OVERALL
thickness0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
hole_diameter0.375 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
hardness_rating27.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
overall_diameter0.683 INCHES MINIMUM AND 0.693 INCHES MAXIMUM IN
surface_treatmentCADMIUM AND CHROMATE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
surface_treatment_document_and_classificationQQ-P-416,TY 2,CL 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-271-8401
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6105345 · 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: QQ-P-416,TY 2,CL 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
OVERALL DIAMETER: 0.683 INCHES MINIMUM AND 0.693 INCHES MAXIMUM IN
•
HARDNESS RATING: 27.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL COMP 4140 OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
OVERALL DIAMETER0.683 INCHES MINIMUM AND 0.693 INCHES MAXIMUM IN
HARDNESS RATING27.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL COMP 4140 OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.375 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
THICKNESS0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
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

No substitute or cross-reference records for this part.

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 6105345?
6105345 is a WASHER,FLAT.
What is the NSN for 6105345?
6105345 is cataloged in the U.S. Government catalog under NSN 5310-01-271-8401. 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.