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12940877 — NUT,PLAIN,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12940877: NUT,PLAIN,ROUND.

The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061 OVERALL, lubrication: DRY FILM LUBRICANT, nut_diameter: 6.250 INCHES MINIMUM AND 6.310 INCHES MAXIMUM IN, thread_class: 2B, nut_thickness: 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN, thread_series: ACME. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-414-1423, 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
12940877
NSN: 5310-01-414-1423
FSC: 5310 — Nuts and Washers
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061 OVERALL
lubricationDRY FILM LUBRICANT
nut_diameter6.250 INCHES MINIMUM AND 6.310 INCHES MAXIMUM IN
thread_class2B
nut_thickness0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
thread_seriesACME
thread_directionRIGHT-HAND
surface_treatmentANODIZE OVERALL
nominal_thread_size5.750 INCHES IN
drive_point_diameter0.260 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
thread_quantity_per_inch2
material_document_and_classificationASTM B209 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B211 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B221 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-414-1423
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12940877 · 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
•
LUBRICATION: DRY FILM LUBRICANT
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625, TY 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: ACME
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B209 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B211 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B221 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 5.750 INCHES IN
•
NUT DIAMETER: 6.250 INCHES MINIMUM AND 6.310 INCHES MAXIMUM IN
•
NUT THICKNESS: 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
LUBRICATIONDRY FILM LUBRICANT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625, TY 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESACME
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B209 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B211 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B221 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE5.750 INCHES IN
NUT DIAMETER6.250 INCHES MINIMUM AND 6.310 INCHES MAXIMUM IN
NUT THICKNESS0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
DRIVE POINT DIAMETER0.260 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
SURFACE TREATMENTANODIZE OVERALL
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

No substitute or cross-reference records for this part.

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 12940877?
12940877 is a NUT,PLAIN,ROUND.
What is the NSN for 12940877?
12940877 is cataloged in the U.S. Government catalog under NSN 5310-01-414-1423. 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.