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518B10009 — WASHER,SHOULDERED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

518B10009: WASHER,SHOULDERED.

The WASHER,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OVERALL, hole_diameter: 0.876 INCHES MINIMUM AND 0.878 INCHES MAXIMUM IN, heat_treatment: AS FABRICATED, shoulder_height: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN, outside_diameter: 1.125 INCHES NOMINAL IN, style_designator: SHOULDERED. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-403-8310, 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
518B10009
NSN: 5310-00-403-8310
FSC: 5310 — Nuts and Washers
CAGE: 31218 — AMI INDUSTRIES, INC DIV UTC AEROSPACE SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OVERALL
hole_diameter0.876 INCHES MINIMUM AND 0.878 INCHES MAXIMUM IN
heat_treatmentAS FABRICATED
shoulder_height0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
outside_diameter1.125 INCHES NOMINAL IN
style_designatorSHOULDERED
shoulder_diameter1.002 INCHES MINIMUM AND 1.003 INCHES MAXIMUM IN
surface_treatmentCADMIUM OVERALL
material_thickness0.111 INCHES MINIMUM AND 0.121 INCHES MAXIMUM IN
material_document_and_classificationMIL-T-6736 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-403-8310
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 518B10009 · 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 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
SHOULDER HEIGHT: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
•
HEAT TREATMENT: AS FABRICATED
•
STYLE DESIGNATOR: SHOULDERED
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-T-6736 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.125 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.111 INCHES MINIMUM AND 0.121 INCHES MAXIMUM IN
•
SHOULDER DIAMETER: 1.002 INCHES MINIMUM AND 1.003 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SHOULDER HEIGHT0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
HEAT TREATMENTAS FABRICATED
STYLE DESIGNATORSHOULDERED
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-T-6736 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.125 INCHES NOMINAL IN
MATERIAL THICKNESS0.111 INCHES MINIMUM AND 0.121 INCHES MAXIMUM IN
SHOULDER DIAMETER1.002 INCHES MINIMUM AND 1.003 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL COMP 4130 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 518B10009?
518B10009 is a WASHER,SHOULDERED.
What is the NSN for 518B10009?
518B10009 is cataloged in the U.S. Government catalog under NSN 5310-00-403-8310. 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.