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12576070 — NUT,PLAIN,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12576070: NUT,PLAIN,ROUND.

The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 OR STEEL COMP 8650 OVERALL, thread_series: UN, hardness_rating: 30.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM, special_features: PROTECTIVE FINISH:NO. 1.9.2.2 OR 1.9.3.2 OF MIL-STD-171, thread_direction: RIGHT-HAND, nominal_thread_size: 2.125 INCHES IN.

This part is cataloged in the U.S. Government catalog under NSN 5310-01-294-2093, 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
12576070
NSN: 5310-01-294-2093
FSC: 5310 — Nuts and Washers
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 OR STEEL COMP 8650 OVERALL
thread_seriesUN
hardness_rating30.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
special_featuresPROTECTIVE FINISH:NO. 1.9.2.2 OR 1.9.3.2 OF MIL-STD-171
thread_directionRIGHT-HAND
nominal_thread_size2.125 INCHES IN
thread_quantity_per_inch12
NSN5310-01-294-2093
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12576070 · 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 SERIES: UN
•
HARDNESS RATING: 30.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 2.125 INCHES IN
•
THREAD QUANTITY PER INCH: 12
•
MATERIAL: STEEL COMP 4140 OR STEEL COMP 8650 OVERALL
TECHNICAL CHARACTERISTICS
THREAD SERIESUN
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE2.125 INCHES IN
SPECIAL FEATURESPROTECTIVE FINISH:NO. 1.9.2.2 OR 1.9.3.2 OF MIL-STD-171
THREAD QUANTITY PER INCH12
MATERIALSTEEL COMP 4140 OR STEEL COMP 8650 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 12576070?
12576070 is a NUT,PLAIN,ROUND.
What is the NSN for 12576070?
12576070 is cataloged in the U.S. Government catalog under NSN 5310-01-294-2093. 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.