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5310PL0990243 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

5310PL0990243: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: IRON OVERALL, hole_diameter: 0.344 INCHES NOMINAL IN, outside_diameter: 1.125 INCHES NOMINAL IN, style_designator: FLAT EXTERNAL TEETH, material_thickness: 0.031 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-958-9398, 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
5310PL0990243
NSN: 5310-00-958-9398
FSC: 5310 — Nuts and Washers
CAGE: 9009H — JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX (POL)
SPECIFICATIONS
materialIRON OVERALL
hole_diameter0.344 INCHES NOMINAL IN
outside_diameter1.125 INCHES NOMINAL IN
style_designatorFLAT EXTERNAL TEETH
material_thickness0.031 INCHES NOMINAL IN
NSN5310-00-958-9398
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5310PL0990243 · 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 EXTERNAL TEETH
•
OUTSIDE DIAMETER: 1.125 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.031 INCHES NOMINAL IN
•
MATERIAL: IRON OVERALL
•
HOLE DIAMETER: 0.344 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORFLAT EXTERNAL TEETH
OUTSIDE DIAMETER1.125 INCHES NOMINAL IN
MATERIAL THICKNESS0.031 INCHES NOMINAL IN
MATERIALIRON OVERALL
HOLE DIAMETER0.344 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
5H40-1481-012Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
5H40-1481Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5310PL0990243?
5310PL0990243 is a WASHER,LOCK.
What parts can replace 5310PL0990243?
There are 2 known substitutes for 5310PL0990243: 5H40-1481-012, 5H40-1481. Substitute compatibility should be verified for your specific system.
What is the NSN for 5310PL0990243?
5310PL0990243 is cataloged in the U.S. Government catalog under NSN 5310-00-958-9398. 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.