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Technical Data Sheet
PartsTable / COMPONENT / BK1B
BK1B ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The CRYSTAL UNIT,QUARTZ is a the manufacturer industrial component. Key specifications include color: BLACK, diameter: 0.326 INCHES MAXIMUM IN, overall_depth: 0.312 INCHES NOMINAL IN, overall_length: 0.265 INCHES MAXIMUM IN, inside_diameter: 0.250 INCHES NOMINAL IN, terminal_length: 0.500 INCHES MINIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5355-00-284-5130, 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
BK1B
NSN: 5355-00-284-5130
FSC: 5355
CAGE: 80375 — CRONAME DIV GRAND SHEET METAL PRODUCTS CO (USA)
SPECIFICATIONS
colorBLACK
diameter0.326 INCHES MAXIMUM IN
overall_depth0.312 INCHES NOMINAL IN
overall_length0.265 INCHES MAXIMUM IN
inside_diameter0.250 INCHES NOMINAL IN
terminal_length0.500 INCHES MINIMUM IN
outside_diameter0.688 INCHES MAXIMUM IN
overall_diameter0.383 INCHES MAXIMUM IN
screw_drive_typeSLOT
style_designatorHAT TYPE, 3 WIRE LEADS
attachment_methodSETSCREWS
circuit_resonanceSERIES RESONANCE
NSN5355-00-284-5130
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CRYSTAL UNIT,QUARTZ TITLE COMPONENT PN BK1B MFR CRYSTAL UNIT,QUARTZ
KEY FEATURES
•
OVERALL THICKNESS: 0.500 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.250 INCHES NOMINAL IN
•
GRIPPING SURFACE CONDITION: GRIP AID
•
SHAFT ACCOMMODATION STYLE: ROUND
•
OUTSIDE DIAMETER: 0.688 INCHES MAXIMUM IN
•
SCREW DRIVE TYPE: SLOT
•
COLOR: BLACK
•
SETSCREW HOLE QUANTITY: 1
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL THICKNESS0.500 INCHES NOMINAL IN
INSIDE DIAMETER0.250 INCHES NOMINAL IN
GRIPPING SURFACE CONDITIONGRIP AID
SHAFT ACCOMMODATION STYLEROUND
OUTSIDE DIAMETER0.688 INCHES MAXIMUM IN
SCREW DRIVE TYPESLOT
COLORBLACK
SETSCREW HOLE QUANTITY1
ATTACHMENT METHODSETSCREWS
STYLE DESIGNATORROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
350-RTInterchangeable
interchangeable cross-reference
interchangeable
2012-T 6Interchangeable
interchangeable cross-reference
interchangeable
GGG-D-751Interchangeable
interchangeable cross-reference
interchangeable
A-A-2733 TY7GRDInterchangeable
interchangeable cross-reference
interchangeable
GGG-C-746 TY7GRDInterchangeable
interchangeable cross-reference
interchangeable
734000062Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BK1B?
BK1B is a CRYSTAL UNIT,QUARTZ.
What parts can replace BK1B?
There are 14 known substitutes for BK1B: 350-RT, 2012-T 6, GGG-D-751 and 11 more. Substitute compatibility should be verified for your specific system.
Is BK1B still available?
BK1B is currently cancelled.
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Last verified: July 2026