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191AM3 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

191AM3: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include special_features: QUANTITY REQUIRED 1, end_item_identification: 2320-01-529-2251 TRUCK, BOMB SERVICE; MRAP BUFFALO MK2A2. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-554-8312, 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
191AM3
NSN: 5310-01-554-8312
FSC: 5310 — Nuts and Washers
CAGE: 89619 — MACK TRUCKS, INC. DBA MACUNGIE OPERATIONS DIV LEHIGH VALLEY OPERATIONS (USA)
SPECIFICATIONS
special_featuresQUANTITY REQUIRED 1
end_item_identification2320-01-529-2251 TRUCK, BOMB SERVICE; MRAP BUFFALO MK2A2
NSN5310-01-554-8312
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 191AM3 · 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
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESQUANTITY REQUIRED 1
END ITEM IDENTIFICATION2320-01-529-2251 TRUCK, BOMB SERVICE; MRAP BUFFALO MK2A2
SUBSTITUTES & CROSS-REFERENCES 2
10000468Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
20706085Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 191AM3?
191AM3 is a NUT,PLAIN,HEXAGON.
What parts can replace 191AM3?
There are 2 known substitutes for 191AM3: 10000468, 20706085. Substitute compatibility should be verified for your specific system.
What is the NSN for 191AM3?
191AM3 is cataloged in the U.S. Government catalog under NSN 5310-01-554-8312. 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.