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Technical Data Sheet
PartsTable / COMPONENT / TLA-5811-S-GRC
TLA-5811-S-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 5310-01-061-5678, 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-S-GRC
NSN: 5310-01-061-5678
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
NSN5310-01-061-5678
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: TLA-5811-S-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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
EE-100590Interchangeable
interchangeable cross-reference
interchangeable
TLA-5811-S-GRCInterchangeable
interchangeable cross-reference
interchangeable
10KP501Interchangeable
interchangeable cross-reference
interchangeable
12759-00102Interchangeable
interchangeable cross-reference
interchangeable
9413999Interchangeable
interchangeable cross-reference
interchangeable
37-350 DJ-20 8INInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is TLA-5811-S-GRC?
TLA-5811-S-GRC is a NUT,SELF-LOCKING,CONE SEAT,HEXAG.
What parts can replace TLA-5811-S-GRC?
There are 14 known substitutes for TLA-5811-S-GRC: EE-100590, TLA-5811-S-GRC, 10KP501 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for TLA-5811-S-GRC?
TLA-5811-S-GRC is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-061-5678. 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