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Technical Data Sheet
PartsTable / COMPONENT / 211039156
211039156 ✓ 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

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 400 OVERALL EXCEPT INSERT, nut_style: HEXAGON, nut_height: 1.547 INCHES MINIMUM AND 1.609 INCHES MAXIMUM IN, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC). This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-494-8396, 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
211039156
NSN: 5310-01-494-8396
FSC: 5310
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialNICKEL ALLOY 400 OVERALL EXCEPT INSERT
nut_styleHEXAGON
nut_height1.547 INCHES MINIMUM AND 1.609 INCHES MAXIMUM IN
temp_rating250.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
countersink_angle88.0 DEGREES MINIMUM SECOND END
width_across_flats1.973 INCHES MINIMUM AND 2.011 INCHES MAXIMUM IN
nominal_thread_size1.375 INCHES IN
bearing_surface_typeCHAMFERED OR WASHER FACED
NSN5310-01-494-8396
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 211039156 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM,D4066,COMP A, TY 1 ASSN STD SINGLE MATERIAL RESPONSE LOCKING INSERT
•
COUNTERSINK ANGLE: 88.0 DEGREES MINIMUM SECOND END
•
NOMINAL THREAD SIZE: 1.375 INCHES IN
•
WIDTH ACROSS FLATS: 1.973 INCHES MINIMUM AND 2.011 INCHES MAXIMUM IN
•
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
•
MATERIAL: PLASTIC LOCKING INSERT
•
TEMP RATING: 250.0 FAHRENHEIT NOMINAL DEGF
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONASTM,D4066,COMP A, TY 1 ASSN STD SINGLE MATERIAL RESPONSE LOCKING INSERT
COUNTERSINK ANGLE88.0 DEGREES MINIMUM SECOND END
NOMINAL THREAD SIZE1.375 INCHES IN
WIDTH ACROSS FLATS1.973 INCHES MINIMUM AND 2.011 INCHES MAXIMUM IN
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
MATERIALPLASTIC LOCKING INSERT
MATERIALNICKEL ALLOY 400 OVERALL EXCEPT INSERT
TEMP RATING250.0 FAHRENHEIT NOMINAL DEGF
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281, CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL EXCEPT INSERT
COUNTERBORE DIAMETER1.427 INCHES MINIMUM AND 1.467 INCHES MAXIMUM FIRST END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
DF330610 FIND 23L1Interchangeable
interchangeable cross-reference
interchangeable
M25027/1-22CInterchangeable
interchangeable cross-reference
interchangeable
ESNA-09NU-226Interchangeable
interchangeable cross-reference
interchangeable
2643-820-12 ITEM 53Interchangeable
interchangeable cross-reference
interchangeable
211070737Interchangeable
interchangeable cross-reference
interchangeable
M25027/1-14CInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 211039156?
211039156 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 211039156?
There are 23 known substitutes for 211039156: DF330610 FIND 23L1, M25027/1-22C, ESNA-09NU-226 and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 211039156?
211039156 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-494-8396. 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