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157AMT1 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

157AMT1: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include drilled_hole_diameter: 8.9 MILLIMETERS NOMINAL MM, end_item_identification: 2320015522924, inside_width_across_flats: 10.0 MILLIMETERS NOMINAL MM, hole_nominal_thread_diameter: 1.0 MILLIMETERS MM, part_name_assigned_by_controlling_agency: NUT. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-697-0142, 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
157AMT1
NSN: 5310-01-697-0142
NIINs: 016970142, 017227946
FSC: 5310 — Nuts and Washers
CAGE: 89619 — MACK TRUCKS, INC. DBA MACUNGIE OPERATIONS DIV LEHIGH VALLEY OPERATIONS (USA)
SPECIFICATIONS
drilled_hole_diameter8.9 MILLIMETERS NOMINAL MM
end_item_identification2320015522924
inside_width_across_flats10.0 MILLIMETERS NOMINAL MM
hole_nominal_thread_diameter1.0 MILLIMETERS MM
part_name_assigned_by_controlling_agencyNUT
NSN5310-01-697-0142
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 157AMT1 · 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
•
WIDTH ACROSS FLATS: 17.73 MILLIMETERS MINIMUM AND 18.00 MILLIMETERS MAXIMUM MM
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: FINISH IAW 21023677 MFR REF SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: M
•
THREAD PITCH IN MILLIMETERS: 1.75
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MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A563M AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL
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THREAD DIRECTION: RIGHT-HAND
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NOMINAL THREAD SIZE: 12.0 MILLIMETERS MM
•
NUT HEIGHT: 10.37 MILLIMETERS MINIMUM AND 10.80 MILLIMETERS MAXIMUM MM
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS17.73 MILLIMETERS MINIMUM AND 18.00 MILLIMETERS MAXIMUM MM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONFINISH IAW 21023677 MFR REF SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESM
THREAD PITCH IN MILLIMETERS1.75
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A563M AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE12.0 MILLIMETERS MM
NUT HEIGHT10.37 MILLIMETERS MINIMUM AND 10.80 MILLIMETERS MAXIMUM MM
PART NAME ASSIGNED BY CONTROLLING AGENCYCLASS 10 STYLE 1 HEX NUTS - METRIC
NUT STYLEHEXAGON
SUBSTITUTES & CROSS-REFERENCES 1
20706405Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 157AMT1?
157AMT1 is a NUT,PLAIN,HEXAGON.
What parts can replace 157AMT1?
There is 1 known substitute for 157AMT1: 20706405. Substitute compatibility should be verified for your specific system.
What is the NSN for 157AMT1?
157AMT1 is cataloged in the U.S. Government catalog under NSN 5310-01-697-0142. This indicates validated use in U.S. government and defense supply chains.
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