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PartsTable / COMPONENT / 411-146-901
411-146-901 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The THUMBSCREW is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, head_style: KNURLED NO. 2KNURLED NO.

2, head_height: 0.281 INCHES NOMINAL0.281 INCHES NOMINAL IN, point_style: POINTLESSPOINTLESS, thread_class: 2A A, head_diameter: 0.375 INCHES NOMINAL0.375 INCHES NOMINAL IN. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-483-9552, 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
411-146-901
NSN: 5305-00-483-9552
FSC: 5305
CAGE: 07421 — L3HARRIS INTERSTATE ELECTRONICS CORPORATION (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
head_styleKNURLED NO. 2KNURLED NO. 2
head_height0.281 INCHES NOMINAL0.281 INCHES NOMINAL IN
point_stylePOINTLESSPOINTLESS
thread_class2A A
head_diameter0.375 INCHES NOMINAL0.375 INCHES NOMINAL IN
thread_length0.250 INCHES MINIMUM IN
fastener_length0.250 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentNICKEL OVERALL
nominal_thread_diameter0.138 INCHES IN
thread_quantity_per_inch32
NSN5305-00-483-9552
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 411-146-901 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
POINT STYLE: POINTLESSPOINTLESS
•
HEAD STYLE: KNURLED NO. 2KNURLED NO. 2
•
MATERIAL: COPPER ALLOY OVERALL
•
SURFACE TREATMENT: NICKEL OVERALL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC)
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
THREAD QUANTITY PER INCH: 32
TECHNICAL CHARACTERISTICS (FLIS)
POINT STYLEPOINTLESSPOINTLESS
HEAD STYLEKNURLED NO. 2KNURLED NO. 2
MATERIALCOPPER ALLOY OVERALL
SURFACE TREATMENTNICKEL OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD DIAMETER0.138 INCHES IN
THREAD QUANTITY PER INCH32
HEAD DIAMETER0.375 INCHES NOMINAL0.375 INCHES NOMINAL IN
THREAD CLASS2A A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
33010Interchangeable
interchangeable cross-reference
interchangeable
230-22100-0325Interchangeable
interchangeable cross-reference
interchangeable
330-24100-1Interchangeable
interchangeable cross-reference
interchangeable
USAF330-10Interchangeable
interchangeable cross-reference
interchangeable
FFB571TYPEA4Interchangeable
interchangeable cross-reference
interchangeable
1537465Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 411-146-901?
411-146-901 is a THUMBSCREW.
What parts can replace 411-146-901?
There are 15 known substitutes for 411-146-901: 33010, 230-22100-0325, 330-24100-1 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 411-146-901?
411-146-901 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-483-9552. 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