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PartsTable / COMPONENT / 9172552
9172552 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The NUT,PLAIN,KNURLED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, nut_style: KNURLED, knurl_width: 0.250 INCHES NOMINAL IN, nut_diameter: 0.750 INCHES NOMINAL IN, thread_class: 3B, nut_thickness: 0.750 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-682-5737, 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
9172552
NSN: 5310-00-682-5737
FSC: 5310
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
nut_styleKNURLED
knurl_width0.250 INCHES NOMINAL IN
nut_diameter0.750 INCHES NOMINAL IN
thread_class3B
nut_thickness0.750 INCHES NOMINAL IN
thread_seriesUNIFIED NATIONAL COARSE (UNC)
small_end_length0.500 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
small_end_diameter0.500 INCHES NOMINAL IN
nominal_thread_size0.250 INCHES IN
NSN5310-00-682-5737
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 9172552 · 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
•
NUT COUNTERBORE DEPTH: 0.250 INCHES NOMINAL NUT IN
•
NUT STYLE: KNURLED
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763,CLASS 303 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NUT THICKNESS: 0.750 INCHES NOMINAL IN
•
NUT DIAMETER: 0.750 INCHES NOMINAL IN
•
SMALL END DIAMETER: 0.500 INCHES NOMINAL IN
•
SMALL END LENGTH: 0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
NUT COUNTERBORE DEPTH0.250 INCHES NOMINAL NUT IN
NUT STYLEKNURLED
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,CLASS 303 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NUT THICKNESS0.750 INCHES NOMINAL IN
NUT DIAMETER0.750 INCHES NOMINAL IN
SMALL END DIAMETER0.500 INCHES NOMINAL IN
SMALL END LENGTH0.500 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
E121108Interchangeable
interchangeable cross-reference
interchangeable
15751Interchangeable
interchangeable cross-reference
interchangeable
BAC1503-1511Interchangeable
interchangeable cross-reference
interchangeable
4064Interchangeable
interchangeable cross-reference
interchangeable
22385Interchangeable
interchangeable cross-reference
interchangeable
F1-12613Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 9172552?
9172552 is a NUT,PLAIN,KNURLED.
What parts can replace 9172552?
There are 11 known substitutes for 9172552: E121108, 15751, BAC1503-1511 and 8 more. Substitute compatibility should be verified for your specific system.
Is 9172552 still available?
9172552 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026