PartsTable
Technical Data Sheet
Download PDF

51206-661 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

51206-661: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, thread_length: 0.750 INCHES MAXIMUM IN, screw_material: STEEL, fastener_length: 0.750 INCHES MINIMUM IN, thread_direction: RIGHT-HAND, nominal_thread_diameter: 0.138 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-009-9761, 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
51206-661
NSN: 5305-01-009-9761
FSC: 5305 — Screws
CAGE: 74063 — TE CONNECTIVITY CORPORATION (USA)
SPECIFICATIONS
head_styleFLAT COUNTERSUNK
thread_length0.750 INCHES MAXIMUM IN
screw_materialSTEEL
fastener_length0.750 INCHES MINIMUM IN
thread_directionRIGHT-HAND
nominal_thread_diameter0.138 INCHES IN
screw_surface_treatmentCADMIUM AND CHROMATE
thread_quantity_per_inch32
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-01-009-9761
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 51206-661 · 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
•
SCREW SURFACE TREATMENT: CADMIUM AND CHROMATE
•
FASTENER LENGTH: 0.750 INCHES MINIMUM IN
•
THREAD LENGTH: 0.750 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
•
SCREW MATERIAL: STEEL
•
THREAD QUANTITY PER INCH: 32
TECHNICAL CHARACTERISTICS
SCREW SURFACE TREATMENTCADMIUM AND CHROMATE
FASTENER LENGTH0.750 INCHES MINIMUM IN
THREAD LENGTH0.750 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.138 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 51206-661?
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 51206-661?
51206-661 is a SCREW,MACHINE.
What is the NSN for 51206-661?
51206-661 is cataloged in the U.S. Government catalog under NSN 5305-01-009-9761. 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 — 51206-661

✓ 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.