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6289730 — WASHER,SPLIT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6289730: WASHER,SPLIT.

The WASHER,SPLIT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1020 OR STEEL COMP 1117 OR STEEL COMP 1118 OVERALL, hole_diameter: 0.152 INCHES MINIMUM AND 0.162 INCHES MAXIMUM IN, surface_finish: 63.0 MICROINCHES BOTTOM, outside_diameter: 0.307 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN, special_features: MICROIN FINISH ON 45.0 DEG RECESSES ONLY; PRESERVE W/LUBRICATING OIL,VV-L-800, style_designator: SPLIT. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-282-9506, 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
6289730
NSN: 5310-01-282-9506
FSC: 5310 — Nuts and Washers
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 1020 OR STEEL COMP 1117 OR STEEL COMP 1118 OVERALL
hole_diameter0.152 INCHES MINIMUM AND 0.162 INCHES MAXIMUM IN
surface_finish63.0 MICROINCHES BOTTOM
outside_diameter0.307 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
special_featuresMICROIN FINISH ON 45.0 DEG RECESSES ONLY; PRESERVE W/LUBRICATING OIL,VV-L-800
style_designatorSPLIT
surface_treatmentPHOSPHATE OVERALL
material_thickness0.061 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
distance_across_split_opening0.093 INCHES MINIMUM AND 0.108 INCHES MAXIMUM IN
material_document_and_classificationASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL
surface_treatment_document_and_classificationDOD-P-16232,TYPE M,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OR DOD-P-16232,TYPE Z,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-282-9506
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6289730 · 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 FINISH: 63.0 MICROINCHES BOTTOM
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: DOD-P-16232,TYPE M,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OR DOD-P-16232,TYPE Z,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
DISTANCE ACROSS SPLIT OPENING: 0.093 INCHES MINIMUM AND 0.108 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SPLIT
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
OUTSIDE DIAMETER: 0.307 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.061 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES BOTTOM
SURFACE FINISH63.0 MICROINCHES TOP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONDOD-P-16232,TYPE M,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OR DOD-P-16232,TYPE Z,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
DISTANCE ACROSS SPLIT OPENING0.093 INCHES MINIMUM AND 0.108 INCHES MAXIMUM IN
STYLE DESIGNATORSPLIT
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL
OUTSIDE DIAMETER0.307 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
MATERIAL THICKNESS0.061 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
SPECIAL FEATURESMICROIN FINISH ON 45.0 DEG RECESSES ONLY; PRESERVE W/LUBRICATING OIL,VV-L-800
SURFACE TREATMENTPHOSPHATE OVERALL
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 6289730?
6289730 is a WASHER,SPLIT.
What is the NSN for 6289730?
6289730 is cataloged in the U.S. Government catalog under NSN 5310-01-282-9506. 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.