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10109540 — WASHER,SHOULDERED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

10109540: WASHER,SHOULDERED.

The WASHER,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 OVERALL, hole_diameter: 0.395 INCHES MINIMUM AND 0.397 INCHES MAXIMUM IN, shoulder_height: 0.055 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN, outside_diameter: 0.625 INCHES NOMINAL IN, style_designator: SHOULDERED, shoulder_diameter: 0.496 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-129-6959, 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
10109540
NSN: 5310-01-129-6959
FSC: 5310 — Nuts and Washers
CAGE: A486G — NIMIKKEISTOKESKUS NCB FINLAND (FIN)
SPECIFICATIONS
materialSTEEL COMP 4140 OVERALL
hole_diameter0.395 INCHES MINIMUM AND 0.397 INCHES MAXIMUM IN
shoulder_height0.055 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN
outside_diameter0.625 INCHES NOMINAL IN
style_designatorSHOULDERED
shoulder_diameter0.496 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
material_thickness0.092 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN
material_document_and_classificationASTM A322 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A331 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-129-6959
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10109540 · 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
•
SHOULDER HEIGHT: 0.055 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SHOULDERED
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A322 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A331 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.625 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.092 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN
•
SHOULDER DIAMETER: 0.496 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 4140 OVERALL
•
HOLE DIAMETER: 0.395 INCHES MINIMUM AND 0.397 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SHOULDER HEIGHT0.055 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN
STYLE DESIGNATORSHOULDERED
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A322 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A331 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.625 INCHES NOMINAL IN
MATERIAL THICKNESS0.092 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN
SHOULDER DIAMETER0.496 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
MATERIALSTEEL COMP 4140 OVERALL
HOLE DIAMETER0.395 INCHES MINIMUM AND 0.397 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 10109540?
10109540 is a WASHER,SHOULDERED.
What is the NSN for 10109540?
10109540 is cataloged in the U.S. Government catalog under NSN 5310-01-129-6959. 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.