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98449A031 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

98449A031: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.398 INCHES NOMINAL IN, outside_diameter: 0.692 INCHES NOMINAL IN, style_designator: FLAT INTERNAL TEETH, material_thickness: 0.032 INCHES NOMINAL IN, end_item_identification: 5895-01-526-8477, DATA ANALYSIS CENTRAL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-543-4076, 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
98449A031
NSN: 5310-01-543-4076
FSC: 5310 — Nuts and Washers
CAGE: 2V507 — MCMASTER-CARR SUPPLY COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.398 INCHES NOMINAL IN
outside_diameter0.692 INCHES NOMINAL IN
style_designatorFLAT INTERNAL TEETH
material_thickness0.032 INCHES NOMINAL IN
end_item_identification5895-01-526-8477, DATA ANALYSIS CENTRAL
part_name_assigned_by_controlling_agencyINTERNAL-TOOTH LOCK WASHER
NSN5310-01-543-4076
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 98449A031 · 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: FLAT INTERNAL TEETH
•
OUTSIDE DIAMETER: 0.692 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.032 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.398 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORFLAT INTERNAL TEETH
OUTSIDE DIAMETER0.692 INCHES NOMINAL IN
MATERIAL THICKNESS0.032 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYINTERNAL-TOOTH LOCK WASHER
END ITEM IDENTIFICATION5895-01-526-8477, DATA ANALYSIS CENTRAL
MATERIALSTEEL OVERALL
HOLE DIAMETER0.398 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 98449A031?
98449A031 is a WASHER,LOCK.
What is the NSN for 98449A031?
98449A031 is cataloged in the U.S. Government catalog under NSN 5310-01-543-4076. 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.