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W4107-SS — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

W4107-SS: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, hole_diameter: 0.156 INCHES NOMINAL IN, outside_diameter: 0.776 INCHES NOMINAL IN, special_features: BOLT SIZE FOR FIT IS NOM. 7/16, style_designator: SPLIT HELICAL-RIGHT HAND, material_thickness: 0.109 INCHES NOMINAL IN.

This part is cataloged in the U.S. Government catalog under NSN 5310-01-653-5081, 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
W4107-SS
NSN: 5310-01-653-5081
FSC: 5310 — Nuts and Washers
CAGE: 79218 — WATEROUS COMPANY (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
hole_diameter0.156 INCHES NOMINAL IN
outside_diameter0.776 INCHES NOMINAL IN
special_featuresBOLT SIZE FOR FIT IS NOM. 7/16
style_designatorSPLIT HELICAL-RIGHT HAND
material_thickness0.109 INCHES NOMINAL IN
end_item_identification4210016220440
material_document_and_classificationSAE 30302 OR 30305 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyWASHER, LOCK MEDIUM SPRING REGULAR SERIES
NSN5310-01-653-5081
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: W4107-SS · 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
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 30302 OR 30305 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.776 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.109 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 30302 OR 30305 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.776 INCHES NOMINAL IN
MATERIAL THICKNESS0.109 INCHES NOMINAL IN
SPECIAL FEATURESBOLT SIZE FOR FIT IS NOM. 7/16
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER, LOCK MEDIUM SPRING REGULAR SERIES
END ITEM IDENTIFICATION4210016220440
MATERIALSTEEL CORROSION RESISTING OVERALL
HOLE DIAMETER0.156 INCHES NOMINAL 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 W4107-SS?
W4107-SS is a WASHER,LOCK.
What is the NSN for W4107-SS?
W4107-SS is cataloged in the U.S. Government catalog under NSN 5310-01-653-5081. 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.