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Technical Data Sheet
PartsTable / COMPONENT / TLA-5811-GRC
TLA-5811-GRC ✓ 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

NUT,SELF-LOCKING,CONE SEAT,HEXAG. Key specifications include nut_style: CONE SEAT, HEXAGON, nut_height: 0.535 INCHES MINIMUM AND 0.559 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), cone_seat_angle: 80.0 DEGREES MINIMUM AND 100.0 DEGREES MAXIMUM, hardness_rating: 24.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-082-6166, 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
TLA-5811-GRC
NSN: 5310-01-082-6166
FSC: 5310
CAGE: 82458 — P.G.& E. CORP. (USA)
SPECIFICATIONS
nut_styleCONE SEAT, HEXAGON
nut_height0.535 INCHES MINIMUM AND 0.559 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
cone_seat_angle80.0 DEGREES MINIMUM AND 100.0 DEGREES MAXIMUM
hardness_rating24.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_across_flats0.922 INCHES MINIMUM AND 0.937 INCHES MAXIMUM IN
nominal_thread_size0.625 INCHES IN
thread_quantity_per_inch11
NSN5310-01-082-6166
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: TLA-5811-GRC · 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
•
THREAD CLASS: 2B
•
NUT HEIGHT: 0.535 INCHES MINIMUM AND 0.559 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
MATERIAL: STEEL COMP 1013 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1023 OR STEEL COMP 1524 OR STEEL COMP 1025 OR STEEL COMP 1026 OR STEEL COMP 1527 OR STEEL COMP 1029 OR STEEL COMP 1030 OR STEEL COMP 1033 OR STEEL COMP 1034 OR STEEL COMP 1035 OR STEEL COMP 1536 OR STEEL COMP 1037 OR STEEL COMP 1038 OR STEEL COMP 1039 OR STEEL COMP 1040 OR STEEL COMP 1541 OVERALL
•
THREAD QUANTITY PER INCH: 11
•
HARDNESS RATING: 24.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
NOMINAL THREAD SIZE: 0.625 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2B
NUT HEIGHT0.535 INCHES MINIMUM AND 0.559 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL COMP 1013 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1023 OR STEEL COMP 1524 OR STEEL COMP 1025 OR STEEL COMP 1026 OR STEEL COMP 1527 OR STEEL COMP 1029 OR STEEL COMP 1030 OR STEEL COMP 1033 OR STEEL COMP 1034 OR STEEL COMP 1035 OR STEEL COMP 1536 OR STEEL COMP 1037 OR STEEL COMP 1038 OR STEEL COMP 1039 OR STEEL COMP 1040 OR STEEL COMP 1541 OVERALL
THREAD QUANTITY PER INCH11
HARDNESS RATING24.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
NOMINAL THREAD SIZE0.625 INCHES IN
CONE SEAT ANGLE80.0 DEGREES MINIMUM AND 100.0 DEGREES MAXIMUM
SURFACE TREATMENTCADMIUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
62CALNCInterchangeable
interchangeable cross-reference
interchangeable
60861AXInterchangeable
interchangeable cross-reference
interchangeable
TLA-5811-S-GRCInterchangeable
interchangeable cross-reference
interchangeable
EE-100590Interchangeable
Same NIIN cross-reference
interchangeable
WG211198Interchangeable
Same NIIN cross-reference
interchangeable
5310010826166Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is TLA-5811-GRC?
TLA-5811-GRC is a NUT,SELF-LOCKING,CONE SEAT,HEXAG.
What parts can replace TLA-5811-GRC?
There are 6 known substitutes for TLA-5811-GRC: 62CALNC, 60861AX, TLA-5811-S-GRC and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for TLA-5811-GRC?
TLA-5811-GRC is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-082-6166. 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