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191AM1 — NUT,PLAIN,EXTENDED WASHER,HEXAGO

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

191AM1: NUT,PLAIN,EXTENDED WASHER,HEXAGO.

NUT,PLAIN,EXTENDED WASHER,HEXAGO. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, overall_height: 9.1 MILLIMETERS NOMINAL MM, thread_direction: RIGHT-HAND, washer_thickness: 1.1 MILLIMETERS NOMINAL MM, surface_treatment: ZINC OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-548-1957, 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
191AM1
NSN: 5310-01-548-1957
FSC: 5310 — Nuts and Washers
CAGE: 89619 — MACK TRUCKS, INC. DBA MACUNGIE OPERATIONS DIV LEHIGH VALLEY OPERATIONS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
thread_seriesM
overall_height9.1 MILLIMETERS NOMINAL MM
thread_directionRIGHT-HAND
washer_thickness1.1 MILLIMETERS NOMINAL MM
surface_treatmentZINC OVERALL
width_across_flats10.0 MILLIMETERS NOMINAL MM
nominal_thread_size6.0 MILLIMETERS MM
supplementary_featuresMETRIC NUTS MEET DIN 6926 AND ARE RELIABLE AT TEMPERATURE UP TO 248 DEGREES F; ROHS COMPLIANT
end_item_identification2320-01-529-2249 TRUCK, BOMB SERVICE; MRAP BUFFALO MK2A2
washer_outside_diameter14.2 MILLIMETERS NOMINAL MM
NSN5310-01-548-1957
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 191AM1 · 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
•
WASHER OUTSIDE DIAMETER: 14.2 MILLIMETERS NOMINAL MM
•
WIDTH ACROSS FLATS: 10.0 MILLIMETERS NOMINAL MM
•
THREAD SERIES: M
•
THREAD PITCH IN MILLIMETERS: 1.0
•
SUPPLEMENTARY FEATURES: METRIC NUTS MEET DIN 6926 AND ARE RELIABLE AT TEMPERATURE UP TO 248 DEGREES F; ROHS COMPLIANT
•
WASHER THICKNESS: 1.1 MILLIMETERS NOMINAL MM
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT9.1 MILLIMETERS NOMINAL MM
WASHER OUTSIDE DIAMETER14.2 MILLIMETERS NOMINAL MM
WIDTH ACROSS FLATS10.0 MILLIMETERS NOMINAL MM
THREAD SERIESM
THREAD PITCH IN MILLIMETERS1.0
SUPPLEMENTARY FEATURESMETRIC NUTS MEET DIN 6926 AND ARE RELIABLE AT TEMPERATURE UP TO 248 DEGREES F; ROHS COMPLIANT
WASHER THICKNESS1.1 MILLIMETERS NOMINAL MM
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE6.0 MILLIMETERS MM
SURFACE TREATMENTZINC OVERALL
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 2
10000186Reference document
Same NSN cross-reference
Reference document — Secondary reference
92461A300Same 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 191AM1?
191AM1 is a NUT,PLAIN,EXTENDED WASHER,HEXAGO.
What parts can replace 191AM1?
There are 2 known substitutes for 191AM1: 10000186, 92461A300. Substitute compatibility should be verified for your specific system.
What is the NSN for 191AM1?
191AM1 is cataloged in the U.S. Government catalog under NSN 5310-01-548-1957. This indicates validated use in U.S. government and defense supply chains.
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