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H689-1721-210 — STUD,SELF-LOCKING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

H689-1721-210: STUD,SELF-LOCKING.

The STUD,SELF-LOCKING is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, head_length: 0.100 INCHES NOMINAL IN, thread_class: 2A STUD THREAD A, head_diameter: 0.256 INCHES NOMINAL IN, thread_length: 0.900 INCHES NOMINAL STUD THREAD IN, overall_length: 1.0 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-682-4357, 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
H689-1721-210
NSN: 5307-01-682-4357
FSC: 5307 — Studs
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
head_length0.100 INCHES NOMINAL IN
thread_class2A STUD THREAD A
head_diameter0.256 INCHES NOMINAL IN
thread_length0.900 INCHES NOMINAL STUD THREAD IN
overall_length1.0 INCHES NOMINAL IN
locking_featureSELF-CLINCHING HEAD
style_designatorSELF-LOCKING
nominal_thread_size0.190 INCHES STUD THREAD IN
end_item_identificationSERVER CANES
thread_series_designatorSI STUD THREAD
part_name_assigned_by_controlling_agencySTUD
NSN5307-01-682-4357
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: H689-1721-210 · 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: 0.900 INCHES NOMINAL STUD THREAD IN
•
STYLE DESIGNATOR: SELF-LOCKING
•
NOMINAL THREAD SIZE: 0.190 INCHES STUD THREAD IN
•
HEAD LENGTH: 0.100 INCHES NOMINAL IN
•
LOCKING FEATURE: SELF-CLINCHING HEAD
•
THREAD CLASS: 2A STUD THREAD A
TECHNICAL CHARACTERISTICS
THREAD LENGTH0.900 INCHES NOMINAL STUD THREAD IN
STYLE DESIGNATORSELF-LOCKING
OVERALL LENGTH1.0 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.190 INCHES STUD THREAD IN
HEAD LENGTH0.100 INCHES NOMINAL IN
LOCKING FEATURESELF-CLINCHING HEAD
PART NAME ASSIGNED BY CONTROLLING AGENCYSTUD
THREAD CLASS2A STUD THREAD A
END ITEM IDENTIFICATIONSERVER CANES
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

No substitute or cross-reference records for this part.

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 H689-1721-210?
H689-1721-210 is a STUD,SELF-LOCKING.
What is the NSN for H689-1721-210?
H689-1721-210 is cataloged in the U.S. Government catalog under NSN 5307-01-682-4357. 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.