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1210C2125 — NUT,PLAIN,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1210C2125: NUT,PLAIN,ROUND.

The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OVERALL, nut_style: ROUND, nut_diameter: 8.047 INCHES MINIMUM AND 8.067 INCHES MAXIMUM IN, nut_thickness: 1.016 INCHES MINIMUM AND 1.041 INCHES MAXIMUM IN, thread_series: UNS, hardness_rating: 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-204-2164, 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
1210C2125
NSN: 5310-01-204-2164
FSC: 5310 — Nuts and Washers
CAGE: 03538 — LOCKHEED MARTIN CORPORATION DIV RMS (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OVERALL
nut_styleROUND
nut_diameter8.047 INCHES MINIMUM AND 8.067 INCHES MAXIMUM IN
nut_thickness1.016 INCHES MINIMUM AND 1.041 INCHES MAXIMUM IN
thread_seriesUNS
hardness_rating34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
thread_directionRIGHT-HAND
countersink_angle90.0 DEGREES MINIMUM AND 120.0 DEGREES MAXIMUM BOTH ENDS
drive_point_depth0.268 INCHES MINIMUM AND 0.294 INCHES MAXIMUM IN
drive_point_width0.610 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
surface_treatmentNICKEL OVERALL
nominal_thread_size6.284 INCHES IN
NSN5310-01-204-2164
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1210C2125 · 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-C-26074,CL 2,GR A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNS
•
HARDNESS RATING: 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
•
THREAD PITCH DIAMETERS: +6.1952 TO 6.1997 INCHES IN
•
DRIVE POINT WIDTH: 0.610 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 6.284 INCHES IN
•
NUT DIAMETER: 8.047 INCHES MINIMUM AND 8.067 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-26074,CL 2,GR A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNS
HARDNESS RATING34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
THREAD PITCH DIAMETERS+6.1952 TO 6.1997 INCHES IN
DRIVE POINT WIDTH0.610 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE6.284 INCHES IN
NUT DIAMETER8.047 INCHES MINIMUM AND 8.067 INCHES MAXIMUM IN
DRIVE POINT DEPTH0.268 INCHES MINIMUM AND 0.294 INCHES MAXIMUM IN
NUT THICKNESS1.016 INCHES MINIMUM AND 1.041 INCHES MAXIMUM IN
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 1
1213E0956 FIND 28Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1210C2125?
1210C2125 is a NUT,PLAIN,ROUND.
What parts can replace 1210C2125?
There is 1 known substitute for 1210C2125: 1213E0956 FIND 28. Substitute compatibility should be verified for your specific system.
What is the NSN for 1210C2125?
1210C2125 is cataloged in the U.S. Government catalog under NSN 5310-01-204-2164. This indicates validated use in U.S. government and defense supply chains.
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