PartsTable
Technical Data Sheet
Download PDF

6318C-SS-3124-7 — NUT,PLAIN,CLINCH

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6318C-SS-3124-7: NUT,PLAIN,CLINCH.

The NUT,PLAIN,CLINCH is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, nut_style: CLINCH, nut_height: 0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM IN, nut_diameter: 0.497 INCHES MINIMUM AND 0.503 INCHES MAXIMUM IN, pilot_length: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN, thread_class: 2B. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-306-6033, 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
6318C-SS-3124-7
NSN: 5310-01-306-6033
FSC: 5310 — Nuts and Washers
CAGE: 1YGB8 — CAREY MANUFACTURING CO, INC DBA AMATOM ELECTRONIC HARDWARE DIV AMATOM ELECTRONIC HARDWARE (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
nut_styleCLINCH
nut_height0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM IN
nut_diameter0.497 INCHES MINIMUM AND 0.503 INCHES MAXIMUM IN
pilot_length0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNF
pilot_diameter0.404 INCHES MINIMUM AND 0.407 INCHES MAXIMUM IN
special_featuresCHAMFER BIG END,0.040 IN. MIN,0.045 IN. MAX LG IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.312 INCHES IN
NSN5310-01-306-6033
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6318C-SS-3124-7 · 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-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNF
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A555 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A581 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NUT COUNTERBORE DEPTH: 0.302 INCHES MINIMUM AND 0.317 INCHES MAXIMUM BASE IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
•
NUT DIAMETER: 0.497 INCHES MINIMUM AND 0.503 INCHES MAXIMUM IN
•
COUNTERBORE DIAMETER: 0.342 INCHES MINIMUM AND 0.349 INCHES MAXIMUM BASE IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNF
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A555 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A581 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NUT COUNTERBORE DEPTH0.302 INCHES MINIMUM AND 0.317 INCHES MAXIMUM BASE IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.312 INCHES IN
NUT DIAMETER0.497 INCHES MINIMUM AND 0.503 INCHES MAXIMUM IN
COUNTERBORE DIAMETER0.342 INCHES MINIMUM AND 0.349 INCHES MAXIMUM BASE IN
PILOT DIAMETER0.404 INCHES MINIMUM AND 0.407 INCHES MAXIMUM IN
PILOT LENGTH0.120 INCHES MINIMUM AND 0.130 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 2
6318C-SS-3124Reference document
Same NSN cross-reference
Reference document — Secondary reference
AD1702-03105-001Reference 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
Ready to buy 6318C-SS-3124-7?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 6318C-SS-3124-7?
6318C-SS-3124-7 is a NUT,PLAIN,CLINCH.
What parts can replace 6318C-SS-3124-7?
There are 2 known substitutes for 6318C-SS-3124-7: 6318C-SS-3124, AD1702-03105-001. Substitute compatibility should be verified for your specific system.
What is the NSN for 6318C-SS-3124-7?
6318C-SS-3124-7 is cataloged in the U.S. Government catalog under NSN 5310-01-306-6033. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 6318C-SS-3124-7

✓ 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.