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PartsTable / COMPONENT / C170SC5-2-13-44
C170SC5-2-13-44 ✓ 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

NUT ASSEMBLY,SELF-LOCKING,GANG C. Key specifications include material: STEEL COMP 302 OR STEEL COMP XM-28 CLIP, nut_style: GANG CHANNEL, SELF LOCKING, lubrication: DRY FILM LUBRICANT, nut_spacing: 1.625 INCHES NOMINAL IN, nut_quantity: 44, thread_class: 3B. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-189-7483, 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
C170SC5-2-13-44
NSN: 5310-01-189-7483
FSC: 5310
CAGE: 80539 — SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP DIV AEROSPACE - SANTA ANA (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OR STEEL COMP XM-28 CLIP
nut_styleGANG CHANNEL, SELF LOCKING
lubricationDRY FILM LUBRICANT
nut_spacing1.625 INCHES NOMINAL IN
nut_quantity44
thread_class3B
channel_styleSTRAIGHT TYPE
overall_width0.652 INCHES MAXIMUM IN
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
channel_height0.344 INCHES MAXIMUM IN
overall_length71.775 INCHES NOMINAL IN
locking_featurePREVAILING TORQUE ALL METAL DESIGN
NSN5310-01-189-7483
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: C170SC5-2-13-44 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE CHANNEL
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
REMOVABLE NUT MANUFACTURER PART NUMBER: ST3M445C5M2
•
CHANNEL STYLE: STRAIGHT TYPE
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
•
SURFACE TREATMENT: PASSIVATE CLIP
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5510 ASSN STD SINGLE MATERIAL RESPONSE CHANNEL
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
REMOVABLE NUT MANUFACTURER PART NUMBERST3M445C5M2
CHANNEL STYLESTRAIGHT TYPE
OVERALL WIDTH0.652 INCHES MAXIMUM IN
OVERALL LENGTH71.775 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.312 INCHES IN
SURFACE TREATMENTPASSIVATE CLIP
MATERIALSTEEL COMP 321 CHANNEL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE NUT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
032Interchangeable
interchangeable cross-reference
interchangeable
513D337M035EK4Interchangeable
interchangeable cross-reference
interchangeable
P-505039Interchangeable
interchangeable cross-reference
interchangeable
G49250E5-2-13-44PInterchangeable
Same NIIN cross-reference
interchangeable
G18421PL2-5-13Interchangeable
Same NIIN cross-reference
interchangeable
10110109Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C170SC5-2-13-44?
C170SC5-2-13-44 is a NUT ASSEMBLY,SELF-LOCKING,GANG C.
What parts can replace C170SC5-2-13-44?
There are 8 known substitutes for C170SC5-2-13-44: 032, 513D337M035EK4, P-505039 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for C170SC5-2-13-44?
C170SC5-2-13-44 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-189-7483. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026