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399959 — FILTER ELEMENT,INTAKE AIR CLEANE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

399959: FILTER ELEMENT,INTAKE AIR CLEANE.

FILTER ELEMENT,INTAKE AIR CLEANE. Key specifications include design_type: REUSABLE, style_designator: RECTANGULAR (INCL SQUARE). This part is cataloged in the U.S.

Government catalog under NSN 5315-00-255-2365, 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
399959
NSN: 5315-00-255-2365
NIINs: 002552365, 013312959, 013984359
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 65282 — WHITE MOTOR CORP (USA)
SPECIFICATIONS
design_typeREUSABLE
style_designatorRECTANGULAR (INCL SQUARE)
NSN5315-00-255-2365
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 399959 · 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
•
FIRST END TAPER LENGTH: 0.062 INCHES NOMINAL IN
•
HOLE ARRANGEMENT STYLE: ONE END DRILLED
•
FIRST END STYLE: CHAMFERED
•
FIRST HOLE DIAMETER: 0.406 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
FIRST END TAPER ANGLE: 45.0 DEGREES NOMINAL
•
PIN OVERALL DIAMETER: 0.9950 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN
•
PIN OVERALL LENGTH: 4.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FIRST END TAPER LENGTH0.062 INCHES NOMINAL IN
HOLE ARRANGEMENT STYLEONE END DRILLED
FIRST END STYLECHAMFERED
FIRST HOLE DIAMETER0.406 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
FIRST END TAPER ANGLE45.0 DEGREES NOMINAL
PIN OVERALL DIAMETER0.9950 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN
PIN OVERALL LENGTH4.000 INCHES NOMINAL IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
MATERIALSTEEL COMP 1020 OVERALL
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 399959?
399959 is a FILTER ELEMENT,INTAKE AIR CLEANE.
What is the NSN for 399959?
399959 is cataloged in the U.S. Government catalog under NSN 5315-00-255-2365. 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.