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CHC-440-4 — STUD,SELF-LOCKING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

CHC-440-4: STUD,SELF-LOCKING.

The STUD,SELF-LOCKING is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, head_length: 0.040 INCHES MAXIMUM IN, thread_class: 2A NUT THREAD A, head_diameter: 0.171 INCHES MAXIMUM IN, thread_length: 0.188 INCHES NOMINAL NUT THREAD IN, overall_length: 0.306 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-059-9807, 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
CHC-440-4
NSN: 5307-01-059-9807
FSC: 5307 — Studs
CAGE: 46384 — PENN ENGINEERING & MANUFACTURING CORP (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
head_length0.040 INCHES MAXIMUM IN
thread_class2A NUT THREAD A
head_diameter0.171 INCHES MAXIMUM IN
thread_length0.188 INCHES NOMINAL NUT THREAD IN
overall_length0.306 INCHES MAXIMUM IN
style_designatorSELF-LOCKING
thread_directionRIGHT-HAND NUT THREAD
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.112 INCHES NUT THREAD IN
thread_quantity_per_inch40 NUT THREAD
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) NUT THREAD
NSN5307-01-059-9807
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: CHC-440-4 · 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
•
THREAD LENGTH: 0.188 INCHES NOMINAL NUT THREAD IN
•
STYLE DESIGNATOR: SELF-LOCKING
•
THREAD DIRECTION: RIGHT-HAND NUT THREAD
•
NOMINAL THREAD SIZE: 0.112 INCHES NUT THREAD IN
•
HEAD LENGTH: 0.040 INCHES MAXIMUM IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
THREAD CLASS: 2A NUT THREAD A
TECHNICAL CHARACTERISTICS
THREAD LENGTH0.188 INCHES NOMINAL NUT THREAD IN
STYLE DESIGNATORSELF-LOCKING
OVERALL LENGTH0.306 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND NUT THREAD
NOMINAL THREAD SIZE0.112 INCHES NUT THREAD IN
HEAD LENGTH0.040 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS2A NUT THREAD A
THREAD QUANTITY PER INCH40 NUT THREAD
MATERIALSTEEL CORROSION RESISTING
OTHER ITEMS IN FSC 5307 — Studs
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5307-00-000-6436 5307-00-001-1578 5307-00-001-1761 5307-00-001-2366 5307-00-001-4491 5307-00-001-4624 5307-00-001-4625
SUBSTITUTES & CROSS-REFERENCES 1
23173-0010Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is CHC-440-4?
CHC-440-4 is a STUD,SELF-LOCKING.
What parts can replace CHC-440-4?
There is 1 known substitute for CHC-440-4: 23173-0010. Substitute compatibility should be verified for your specific system.
What is the NSN for CHC-440-4?
CHC-440-4 is cataloged in the U.S. Government catalog under NSN 5307-01-059-9807. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.