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6258D-SS-3716 — NUT,PLAIN,SPLINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6258D-SS-3716: NUT,PLAIN,SPLINE.

The NUT,PLAIN,SPLINE is a the manufacturer industrial component. Key specifications include nut_style: SPLINE, nut_height: 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN, nut_diameter: 0.872 INCHES MINIMUM AND 0.878 INCHES MAXIMUM IN, pilot_length: 0.183 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the U.S.

Government catalog under NSN 5310-01-218-7129, 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
6258D-SS-3716
NSN: 5310-01-218-7129
FSC: 5310 — Nuts and Washers
CAGE: 1YGB8 — CAREY MANUFACTURING CO, INC DBA AMATOM ELECTRONIC HARDWARE DIV AMATOM ELECTRONIC HARDWARE (USA)
SPECIFICATIONS
nut_styleSPLINE
nut_height0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN
nut_diameter0.872 INCHES MINIMUM AND 0.878 INCHES MAXIMUM IN
pilot_length0.183 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
pilot_diameter0.479 INCHES MINIMUM AND 0.482 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.375 INCHES IN
counterbore_diameter0.401 INCHES MINIMUM AND 0.411 INCHES MAXIMUM NUT IN
nut_counterbore_depth0.433 INCHES MINIMUM AND 0.443 INCHES MAXIMUM NUT IN
NSN5310-01-218-7129
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6258D-SS-3716 · 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-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A555 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A581 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
NUT COUNTERBORE DEPTH: 0.433 INCHES MINIMUM AND 0.443 INCHES MAXIMUM NUT IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.375 INCHES IN
•
NUT DIAMETER: 0.872 INCHES MINIMUM AND 0.878 INCHES MAXIMUM IN
•
COUNTERBORE DIAMETER: 0.401 INCHES MINIMUM AND 0.411 INCHES MAXIMUM NUT IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A555 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A581 ASSN STD ALL MATERIAL RESPONSES OVERALL
NUT COUNTERBORE DEPTH0.433 INCHES MINIMUM AND 0.443 INCHES MAXIMUM NUT IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.375 INCHES IN
NUT DIAMETER0.872 INCHES MINIMUM AND 0.878 INCHES MAXIMUM IN
COUNTERBORE DIAMETER0.401 INCHES MINIMUM AND 0.411 INCHES MAXIMUM NUT IN
PILOT DIAMETER0.479 INCHES MINIMUM AND 0.482 INCHES MAXIMUM IN
PILOT LENGTH0.183 INCHES MINIMUM AND 0.193 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

No substitute or cross-reference records for this part.

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 6258D-SS-3716?
6258D-SS-3716 is a NUT,PLAIN,SPLINE.
What is the NSN for 6258D-SS-3716?
6258D-SS-3716 is cataloged in the U.S. Government catalog under NSN 5310-01-218-7129. 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.