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4249230 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

4249230: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include hole_diameter: 1.31 INCHES NOMINAL IN, outside_diameter: 1.75 INCHES NOMINAL IN, style_designator: EXTERNAL TEETH, end_item_identification: 3930016417505, part_name_assigned_by_controlling_agency: WASH, LOCK, EXT HANDLE ASSY. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-669-9196, 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
4249230
NSN: 5310-01-669-9196
FSC: 5310 — Nuts and Washers
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
hole_diameter1.31 INCHES NOMINAL IN
outside_diameter1.75 INCHES NOMINAL IN
style_designatorEXTERNAL TEETH
end_item_identification3930016417505
part_name_assigned_by_controlling_agencyWASH, LOCK, EXT HANDLE ASSY
NSN5310-01-669-9196
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 4249230 · 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: EXTERNAL TEETH
•
OUTSIDE DIAMETER: 1.75 INCHES NOMINAL IN
•
HOLE DIAMETER: 1.31 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATOREXTERNAL TEETH
OUTSIDE DIAMETER1.75 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYWASH, LOCK, EXT HANDLE ASSY
END ITEM IDENTIFICATION3930016417505
HOLE DIAMETER1.31 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 4249230?
4249230 is a WASHER,LOCK.
What is the NSN for 4249230?
4249230 is cataloged in the U.S. Government catalog under NSN 5310-01-669-9196. 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.