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68A552172-2001 — NUT,PLAIN,KNURLED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

68A552172-2001: NUT,PLAIN,KNURLED.

The NUT,PLAIN,KNURLED is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061 OVERALL, nut_style: KNURLED, nut_diameter: 3.250 INCHES NOMINAL IN, thread_class: 3B, nut_thickness: 0.560 INCHES NOMINAL IN, thread_series: UN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-137-2470, 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
68A552172-2001
NSN: 5310-01-137-2470
FSC: 5310 — Nuts and Washers
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061 OVERALL
nut_styleKNURLED
nut_diameter3.250 INCHES NOMINAL IN
thread_class3B
nut_thickness0.560 INCHES NOMINAL IN
thread_seriesUN
thread_directionRIGHT-HAND
surface_treatmentANODIZE OVERALL
nominal_thread_size3.000 INCHES IN
thread_quantity_per_inch12
material_document_and_classificationQQ-A-225/8 COND T651 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-137-2470
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 68A552172-2001 · 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: UN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/8 COND T651 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 3.000 INCHES IN
•
NUT DIAMETER: 3.250 INCHES NOMINAL IN
•
NUT THICKNESS: 0.560 INCHES NOMINAL IN
•
SURFACE TREATMENT: ANODIZE OVERALL
•
NUT STYLE: KNURLED
TECHNICAL CHARACTERISTICS
THREAD SERIESUN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/8 COND T651 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE3.000 INCHES IN
NUT DIAMETER3.250 INCHES NOMINAL IN
NUT THICKNESS0.560 INCHES NOMINAL IN
SURFACE TREATMENTANODIZE OVERALL
NUT STYLEKNURLED
THREAD CLASS3B
THREAD QUANTITY PER INCH12
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 68A552172-2001?
68A552172-2001 is a NUT,PLAIN,KNURLED.
What is the NSN for 68A552172-2001?
68A552172-2001 is cataloged in the U.S. Government catalog under NSN 5310-01-137-2470. 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.