PartsTable
Technical Data Sheet
Download PDF

3731951 — CABLE ASSEMBLY,SPECIAL PURPOSE,E

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

3731951: CABLE ASSEMBLY,SPECIAL PURPOSE,E.

CABLE ASSEMBLY,SPECIAL PURPOSE,E. Key specifications include thread_class: 3A A, thread_length: 1.100 INCHES MINIMUM IN, thread_direction: RIGHT-HAND, nominal_thread_diameter: 0.625 INCHES IN, thread_quantity_per_inch: 18, thread_series_designator: UNF. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-628-5507, 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
3731951
NSN: 5306-00-628-5507
NIINs: 006285507, 016960946
FSC: 5306 — Bolts
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
thread_class3A A
thread_length1.100 INCHES MINIMUM IN
thread_directionRIGHT-HAND
nominal_thread_diameter0.625 INCHES IN
thread_quantity_per_inch18
thread_series_designatorUNF
NSN5306-00-628-5507
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3731951 · 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: 1.100 INCHES MINIMUM IN
•
NOMINAL THREAD DIAMETER: 0.625 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD CLASS: 3A A
•
THREAD QUANTITY PER INCH: 18
•
THREAD SERIES DESIGNATOR: UNF
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS
THREAD LENGTH1.100 INCHES MINIMUM IN
NOMINAL THREAD DIAMETER0.625 INCHES IN
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A A
THREAD QUANTITY PER INCH18
THREAD SERIES DESIGNATORUNF
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
Ready to buy 3731951?
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 3731951?
3731951 is a CABLE ASSEMBLY,SPECIAL PURPOSE,E.
What is the NSN for 3731951?
3731951 is cataloged in the U.S. Government catalog under NSN 5306-00-628-5507. 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 — 3731951

✓ 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.