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2BC256 — Technical Data Sheet

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— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The PIN,TAPERED,PLAIN is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System under NSN 5315-01-160-4649, 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
2BC256
NSN: 5315-01-160-4649
FSC: 5315
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
Part Number2BC256
NSN5315-01-160-4649
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2BC256 · 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
•
MATERIAL: STEEL COMP 302B OR STEEL COMP 302 OR STEEL COMP 303CU OR STEEL COMP 303MA OR STEEL COMP 303PB OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X OR STEEL COMP 303 OR STEEL COMP 304L OR STEEL COMP 304 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
MATERIALSTEEL COMP 302B OR STEEL COMP 302 OR STEEL COMP 303CU OR STEEL COMP 303MA OR STEEL COMP 303PB OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X OR STEEL COMP 303 OR STEEL COMP 304L OR STEEL COMP 304 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
450020InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
531109 ITEM 4InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
6091-1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
6091InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
3022489-001InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2BC256?
2BC256 is a PIN,TAPERED,PLAIN.
What parts can replace 2BC256?
There are 5 known substitutes for 2BC256: 450020, 531109 ITEM 4, 6091-1 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2BC256?
2BC256 is cataloged in the Federal Logistics Information System under NSN 5315-01-160-4649. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: October 2026