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PartsTable / COMPONENT / SCD101-4
SCD101-4 ✓ 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,SELF-LOCKING,CAP is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1212 NUT, nut_style: CAP, nut_height: 0.308 INCHES NOMINAL IN, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNF. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-964-7178, 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
SCD101-4
NSN: 5310-00-964-7178
FSC: 5310
CAGE: 99449 — H KOCH & SONS CO (USA)
SPECIFICATIONS
materialSTEEL COMP 1212 NUT
nut_styleCAP
nut_height0.308 INCHES NOMINAL IN
temp_rating250.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNF
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
surface_treatmentCADMIUM NUT
width_across_flats0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
nominal_thread_size0.190 INCHES IN
bearing_surface_typeCHAMFERED
NSN5310-00-964-7178
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SCD101-4 · 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: UNF
•
THREAD CLASS: 3B
•
MATERIAL: STEEL COMP 1212 NUT
•
BEARING SURFACE TYPE: CHAMFERED
•
NOMINAL THREAD SIZE: 0.190 INCHES IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE NUT
•
TEMP RATING: 250.0 FAHRENHEIT NOMINAL DEGF
•
LOCKING FEATURE: PREVAILING TORQUE WITH NONMETALLIC INSERT
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIESUNF
THREAD CLASS3B
MATERIALSTEEL COMP 1212 NUT
BEARING SURFACE TYPECHAMFERED
NOMINAL THREAD SIZE0.190 INCHES IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE NUT
TEMP RATING250.0 FAHRENHEIT NOMINAL DEGF
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
THREAD QUANTITY PER INCH32
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
QQ-A-200/3Interchangeable
interchangeable cross-reference
interchangeable
PA12813Interchangeable
interchangeable cross-reference
interchangeable
LS5141Interchangeable
interchangeable cross-reference
interchangeable
0176870008Interchangeable
interchangeable cross-reference
interchangeable
17687Interchangeable
interchangeable cross-reference
interchangeable
5310PL0127252Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SCD101-4?
SCD101-4 is a NUT,SELF-LOCKING,CAP.
What parts can replace SCD101-4?
There are 8 known substitutes for SCD101-4: QQ-A-200/3, PA12813, LS5141 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SCD101-4?
SCD101-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-964-7178. 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