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10121988 — NUT,CLIP-ON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

10121988: NUT,CLIP-ON.

The NUT,CLIP-ON is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1137 OVERALL, nut_style: FLOATINGFLOATING, thread_class: 3B3B, overall_width: 0.280 INCHES MAXIMUM0.280 INCHES MAXIMUM IN, thread_series: UNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC), panel_thickness: 0.075 INCHES MINIMUM AND 0.075 INCHES MINIMUM AND 0.105 INCHES MAXIMUM0.105 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-024-2594, 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
10121988
NSN: 5310-01-024-2594
FSC: 5310 — Nuts and Washers
CAGE: A486G — NIMIKKEISTOKESKUS NCB FINLAND (FIN)
SPECIFICATIONS
materialSTEEL COMP 1137 OVERALL
nut_styleFLOATINGFLOATING
thread_class3B3B
overall_width0.280 INCHES MAXIMUM0.280 INCHES MAXIMUM IN
thread_seriesUNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC)
panel_thickness0.075 INCHES MINIMUM AND 0.075 INCHES MINIMUM AND 0.105 INCHES MAXIMUM0.105 INCHES MAXIMUM IN
thread_directionRIGHT-HANDRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE OVERALL
nominal_thread_size0.138 INCHES0.138 INCHES IN
thread_quantity_per_inch3232
material_document_and_classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
distance_from_base_to_center_of_aperture0.223 INCHES MAXIMUM0.223 INCHES MAXIMUM IN
NSN5310-01-024-2594
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10121988 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY2,CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC)
•
DISTANCE FROM BASE TO CENTER OF APERTURE: 0.223 INCHES MAXIMUM0.223 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HANDRIGHT-HAND
•
PANEL THICKNESS: 0.075 INCHES MINIMUM AND 0.075 INCHES MINIMUM AND 0.105 INCHES MAXIMUM0.105 INCHES MAXIMUM IN
•
NOMINAL THREAD SIZE: 0.138 INCHES0.138 INCHES IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY2,CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC)
DISTANCE FROM BASE TO CENTER OF APERTURE0.223 INCHES MAXIMUM0.223 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
OVERALL WIDTH0.280 INCHES MAXIMUM0.280 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HANDRIGHT-HAND
PANEL THICKNESS0.075 INCHES MINIMUM AND 0.075 INCHES MINIMUM AND 0.105 INCHES MAXIMUM0.105 INCHES MAXIMUM IN
NOMINAL THREAD SIZE0.138 INCHES0.138 INCHES IN
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
NUT STYLEFLOATINGFLOATING
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 4
A6732-5-62Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
6400170-101Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5310PL0739869Reference document
Same NSN cross-reference
Reference document — Informative reference only
333-1453-010Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 10121988?
10121988 is a NUT,CLIP-ON.
What parts can replace 10121988?
There are 4 known substitutes for 10121988: A6732-5-62, 6400170-101, 5310PL0739869 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 10121988?
10121988 is cataloged in the U.S. Government catalog under NSN 5310-01-024-2594. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.