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7B6641 — PIN,TAPERED,THREADED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

7B6641: PIN,TAPERED,THREADED.

The PIN,TAPERED,THREADED is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include taper: 0.700 PER FOOT IN INCHES, material: STEEL OVERALL, grip_length: 1.875 INCHES NOMINAL IN, thread_class: 2A A, style_designator: THREADED AT SMALL END, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-426-5877, 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
7B6641
NSN: 5315-00-426-5877
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
taper0.700 PER FOOT IN INCHES
materialSTEEL OVERALL
grip_length1.875 INCHES NOMINAL IN
thread_class2A A
style_designatorTHREADED AT SMALL END
thread_directionRIGHT-HAND
nominal_thread_size0.500 INCHES IN
taper_minor_diameter0.562 INCHES NOMINAL IN
thread_series_designatorUNF
NSN5315-00-426-5877
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 7B6641 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
TAPER MINOR DIAMETER: 0.562 INCHES NOMINAL IN
•
STYLE DESIGNATOR: THREADED AT SMALL END
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.500 INCHES IN
•
GRIP LENGTH: 1.875 INCHES NOMINAL IN
•
TAPER: 0.700 PER FOOT IN INCHES
•
THREAD CLASS: 2A A
•
MATERIAL: STEEL OVERALL
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
TECHNICAL CHARACTERISTICS
TAPER MINOR DIAMETER0.562 INCHES NOMINAL IN
STYLE DESIGNATORTHREADED AT SMALL END
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.500 INCHES IN
GRIP LENGTH1.875 INCHES NOMINAL IN
TAPER0.700 PER FOOT IN INCHES
THREAD CLASS2A A
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORUNF
OTHER ITEMS IN FSC 5315 — Nails, Machine Keys, and Pins
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5315-00-000-1037 5315-00-000-1067 5315-00-000-1245 5315-00-000-1372 5315-00-000-1412 5315-00-001-1571 5315-00-001-1572 5315-00-001-1602
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7B6641?
7B6641 is a PIN,TAPERED,THREADED.
What is the NSN for 7B6641?
7B6641 is cataloged in the U.S. Government catalog under NSN 5315-00-426-5877. 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.