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6655C — NUT,PLAIN,KNURLED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6655C: NUT,PLAIN,KNURLED.

The NUT,PLAIN,KNURLED is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, nut_style: KNURLED, knurl_width: 0.062 INCHES NOMINAL IN, nut_diameter: 0.344 INCHES NOMINAL IN, thread_class: 2B, nut_thickness: 0.200 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-083-4646, 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
6655C
NSN: 5310-00-083-4646
FSC: 5310 — Nuts and Washers
CAGE: 72653 — GC/WALDOM INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nut_styleKNURLED
knurl_width0.062 INCHES NOMINAL IN
nut_diameter0.344 INCHES NOMINAL IN
thread_class2B
nut_thickness0.200 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN
thread_seriesUNIFIED NATIONAL COARSE (UNC)
thread_directionRIGHT-HAND
surface_treatmentNICKEL OVERALL
nominal_thread_size0.138 INCHES IN
thread_quantity_per_inch32
NSN5310-00-083-4646
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6655C · 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: UNIFIED NATIONAL COARSE (UNC)
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.138 INCHES IN
•
NUT DIAMETER: 0.344 INCHES NOMINAL IN
•
NUT THICKNESS: 0.200 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN
•
SURFACE TREATMENT: NICKEL OVERALL
•
NUT STYLE: KNURLED
•
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.138 INCHES IN
NUT DIAMETER0.344 INCHES NOMINAL IN
NUT THICKNESS0.200 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN
SURFACE TREATMENTNICKEL OVERALL
NUT STYLEKNURLED
THREAD CLASS2B
THREAD QUANTITY PER INCH32
MATERIALCOPPER ALLOY 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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6655C?
6655C is a NUT,PLAIN,KNURLED.
What is the NSN for 6655C?
6655C is cataloged in the U.S. Government catalog under NSN 5310-00-083-4646. 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.