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E20020-M16 — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

E20020-M16: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, nut_style: HEXAGON, nut_height: 18.0 MILLIMETERS MAXIMUM MM, lubrication: DRY FILM LUBRICANT, thread_series: ISO M, locking_feature: PREVAILING TORQUE ALL METAL DESIGN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-277-8830, 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
E20020-M16
NSN: 5310-01-277-8830
FSC: 5310 — Nuts and Washers
CAGE: 72962 — HARVARD INDUSTRIES INC (USA)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
nut_styleHEXAGON
nut_height18.0 MILLIMETERS MAXIMUM MM
lubricationDRY FILM LUBRICANT
thread_seriesISO M
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
countersink_angle88.0 DEGREES MINIMUM BASE
surface_treatmentPASSIVATE OVERALL
width_across_flats23.67 MILLIMETERS MINIMUM AND 24.00 MILLIMETERS MAXIMUM MM
nominal_thread_size16.0 MILLIMETERS MM
bearing_surface_typeCHAMFERED
NSN5310-01-277-8830
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: E20020-M16 · 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
•
LUBRICATION: DRY FILM LUBRICANT
•
WIDTH ACROSS FLATS: 23.67 MILLIMETERS MINIMUM AND 24.00 MILLIMETERS MAXIMUM MM
•
THREAD TOLERANCE CLASS: 5H INTERNAL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: ISO M
•
THREAD PITCH IN MILLIMETERS: 1.50
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
LUBRICATIONDRY FILM LUBRICANT
WIDTH ACROSS FLATS23.67 MILLIMETERS MINIMUM AND 24.00 MILLIMETERS MAXIMUM MM
THREAD TOLERANCE CLASS5H INTERNAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESISO M
THREAD PITCH IN MILLIMETERS1.50
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE16.0 MILLIMETERS MM
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
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
H49889-16MMSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
75078-M1615Same 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 E20020-M16?
E20020-M16 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace E20020-M16?
There are 2 known substitutes for E20020-M16: H49889-16MM, 75078-M1615. Substitute compatibility should be verified for your specific system.
What is the NSN for E20020-M16?
E20020-M16 is cataloged in the U.S. Government catalog under NSN 5310-01-277-8830. This indicates validated use in U.S. government and defense supply chains.
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