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12304927 — NUT,PLAIN,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12304927: NUT,PLAIN,ROUND.

The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1340H OR STEEL COMP 4140H OVERALL, nut_style: ROUND, nut_diameter: 16.002 INCHES NOMINAL IN, nut_thickness: 1.500 INCHES NOMINAL IN, thread_series: UNS, hardness_rating: 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-185-9363, 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
12304927
NSN: 5310-01-185-9363
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 1340H OR STEEL COMP 4140H OVERALL
nut_styleROUND
nut_diameter16.002 INCHES NOMINAL IN
nut_thickness1.500 INCHES NOMINAL IN
thread_seriesUNS
hardness_rating30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
special_features0.164-36UNF-2B,HOLE ON FLAT
thread_directionRIGHT-HAND
surface_treatmentPHOSPHATE OVERALL
thread_pitch_diameters+13.7083 TO 13.8950 INCHES IN
material_document_and_classificationMIL-S-46172,GRADE D MIL SPEC ALL MATERIAL RESPONSES OVERALL
surface_treatment_document_and_classificationMIL-P-16232,TYPE M,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-185-9363
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12304927 · 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: MIL-P-16232,TYPE M,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNS
•
HARDNESS RATING: 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
•
THREAD PITCH DIAMETERS: +13.7083 TO 13.8950 INCHES IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-46172,GRADE D MIL SPEC ALL MATERIAL RESPONSES OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NUT DIAMETER: 16.002 INCHES NOMINAL IN
•
NUT THICKNESS: 1.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-P-16232,TYPE M,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNS
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
THREAD PITCH DIAMETERS+13.7083 TO 13.8950 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-46172,GRADE D MIL SPEC ALL MATERIAL RESPONSES OVERALL
THREAD DIRECTIONRIGHT-HAND
NUT DIAMETER16.002 INCHES NOMINAL IN
NUT THICKNESS1.500 INCHES NOMINAL IN
SPECIAL FEATURES0.164-36UNF-2B,HOLE ON FLAT
SURFACE TREATMENTPHOSPHATE 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 12304927?
12304927 is a NUT,PLAIN,ROUND.
What is the NSN for 12304927?
12304927 is cataloged in the U.S. Government catalog under NSN 5310-01-185-9363. 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.