PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 401143

401143 — Technical Data Sheet

✓ 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 SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include phase: SINGLE INPUT, material: STEEL OVERALL, duty_cycle: CONTINUOUS, head_style: FLAT CHAMFER, head_height: 0.188 INCHES NOMINAL IN, specific_use: CERCOM EQUIP.. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 5305-01-032-3166, 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
401143
NSN: 5305-01-032-3166
FSC: 5305
CAGE: 64959 — AMERICAN TELEPHONE AND TELEGRAPH CO (USA)
SPECIFICATIONS
phaseSINGLE INPUT
materialSTEEL OVERALL
duty_cycleCONTINUOUS
head_styleFLAT CHAMFER
head_height0.188 INCHES NOMINAL IN
specific_useCERCOM EQUIP.
thread_class2A A
head_diameter0.312 INCHES NOMINAL IN
thread_length0.125 INCHES NOMINAL IN
cooling_methodAMBIENT AIR
shoulder_shapeROUND FIRST SHOULDER
fastener_length0.375 INCHES NOMINAL IN
NSN5305-01-032-3166
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 401143 · 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
•
INTERNAL DRIVE STYLE: SLOT
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
THREAD SERIES DESIGNATOR: UNF
•
MATERIAL: STEEL OVERALL
•
SHOULDER DIAMETER: 0.188 INCHES NOMINAL FIRST SHOULDER IN
•
THREAD QUANTITY PER INCH: 40
•
THREAD DIRECTION: RIGHT-HAND
•
FASTENER LENGTH: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
INTERNAL DRIVE STYLESLOT
NOMINAL THREAD DIAMETER0.138 INCHES IN
THREAD SERIES DESIGNATORUNF
MATERIALSTEEL OVERALL
SHOULDER DIAMETER0.188 INCHES NOMINAL FIRST SHOULDER IN
THREAD QUANTITY PER INCH40
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH0.375 INCHES NOMINAL IN
THREAD LENGTH0.125 INCHES NOMINAL IN
HEAD HEIGHT0.188 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 1
DIG-0801NInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 401143?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 401143?
401143 is a SCREW,SHOULDER.
What parts can replace 401143?
There is 1 known substitute for 401143: DIG-0801N. Substitute compatibility should be verified for your specific system.
What is the NSN for 401143?
401143 is cataloged in the Federal Logistics Information System under NSN 5305-01-032-3166. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 401143

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026