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Technical Data Sheet
PartsTable / COMPONENT / 10121591
10121591 ✓ 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,CLINCH is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.125 INCHES MAXIMUM IN, lubrication: DRY FILM LUBRICANT, temp_rating: 450.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-275-1693, 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
10121591
NSN: 5310-00-275-1693
FSC: 5310
CAGE: 04660 — AIL SYSTEMS INC SUB OF EATON CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.125 INCHES MAXIMUM IN
lubricationDRY FILM LUBRICANT
temp_rating450.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNJC
locking_featurePREVAILING TORQUE ALL METAL DESIGN
special_featuresDESIGNED FOR INTERNAL WRENCHING DEVICE
thread_directionRIGHT-HAND
countersink_angle120.0 DEGREES NOMINAL NUT
surface_treatmentCADMIUM OVERALL
NSN5310-00-275-1693
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10121591 · 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 13
H10-04Interchangeable
interchangeable cross-reference
interchangeable
BACN10JC04Interchangeable
interchangeable cross-reference
interchangeable
BACN10BY504WInterchangeable
interchangeable cross-reference
interchangeable
CVCPICInterchangeable
interchangeable cross-reference
interchangeable
160709Interchangeable
interchangeable cross-reference
interchangeable
F12NC4284-2-62Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 10121591?
10121591 is a NUT,SELF-LOCKING,CLINCH.
What parts can replace 10121591?
There are 13 known substitutes for 10121591: H10-04, BACN10JC04, BACN10BY504W and 10 more. Substitute compatibility should be verified for your specific system.
Is 10121591 still available?
10121591 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026