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711531512103 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

711531512103: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include thickness: 0.5 MILLIMETERS NOMINAL MM, overall_diameter: 7.0 MILLIMETERS NOMINAL MM, special_features: WASHER,LEAF USED ON MG,M249;MATERIAL IS STEEL;SURFACE TREATMENT IS PHOSPHATE. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-131-1907, 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
711531512103
NSN: 5310-01-131-1907
FSC: 5310 — Nuts and Washers
CAGE: 0000V — NCB HUNGARY (HONVEDSEGI EGYSEGES TERMEKKOD) (HUN)
SPECIFICATIONS
thickness0.5 MILLIMETERS NOMINAL MM
overall_diameter7.0 MILLIMETERS NOMINAL MM
special_featuresWASHER,LEAF USED ON MG,M249;MATERIAL IS STEEL;SURFACE TREATMENT IS PHOSPHATE
NSN5310-01-131-1907
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 711531512103 · 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
•
OVERALL DIAMETER: 7.0 MILLIMETERS NOMINAL MM
•
THICKNESS: 0.5 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER7.0 MILLIMETERS NOMINAL MM
SPECIAL FEATURESWASHER,LEAF USED ON MG,M249;MATERIAL IS STEEL;SURFACE TREATMENT IS PHOSPHATE
THICKNESS0.5 MILLIMETERS NOMINAL MM
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 1
125-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 711531512103?
711531512103 is a WASHER,FLAT.
What parts can replace 711531512103?
There is 1 known substitute for 711531512103: 125-3. Substitute compatibility should be verified for your specific system.
What is the NSN for 711531512103?
711531512103 is cataloged in the U.S. Government catalog under NSN 5310-01-131-1907. 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.