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Technical Data Sheet
PartsTable / COMPONENT / 105609
105609 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

FILTER ELEMENT,INTAKE AIR CLEANE. Key specifications include end_item_identification: MRAP - UNIQUE NSN - COUGAR JERRV 6X6 EOD CAT II, part_name_assigned_by_controlling_agency: SAFTEY ELEMENT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-010-5609, 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
105609
NSN: 5310-00-010-5609
FSC: 5310
CAGE: 21450 — ARMY WEAPONS COMMAND ATTN AMSWE-REE-S (USA)
SPECIFICATIONS
end_item_identificationMRAP - UNIQUE NSN - COUGAR JERRV 6X6 EOD CAT II
part_name_assigned_by_controlling_agencySAFTEY ELEMENT
NSN5310-00-010-5609
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 105609 · 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
•
THREAD CLASS: 2B
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
BEARING SURFACE TYPE: WASHER FACED
•
THREAD QUANTITY PER INCH: 12
•
NOMINAL THREAD SIZE: 0.562 INCHES IN
•
MATERIAL: STEEL OVERALL
•
WIDTH ACROSS FLATS: 0.847 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
•
NUT HEIGHT: 0.479 INCHES MINIMUM AND 0.521 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2B
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
BEARING SURFACE TYPEWASHER FACED
THREAD QUANTITY PER INCH12
NOMINAL THREAD SIZE0.562 INCHES IN
MATERIALSTEEL OVERALL
WIDTH ACROSS FLATS0.847 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
NUT HEIGHT0.479 INCHES MINIMUM AND 0.521 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
NUT STYLESQUARE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
105605Interchangeable
interchangeable cross-reference
interchangeable
900405Interchangeable
interchangeable cross-reference
interchangeable
105606Interchangeable
interchangeable cross-reference
interchangeable
105611Interchangeable
interchangeable cross-reference
interchangeable
FFB571TYPEB1Interchangeable
interchangeable cross-reference
interchangeable
125550Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 105609?
105609 is a FILTER ELEMENT,INTAKE AIR CLEANE.
What parts can replace 105609?
There are 9 known substitutes for 105609: 105605, 900405, 105606 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 105609?
105609 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-010-5609. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026