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PartsTable / COMPONENT / B511001221
B511001221 ✓ 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 INSULATOR,WASHER is a the manufacturer industrial component. Key specifications include material: BERYLLIUM OXIDE OVERALL, overall_height: 0.030 INCHES NOMINAL IN, inside_diameter: 0.120 INCHES NOMINAL IN, outside_diameter: 0.375 INCHES NOMINAL IN, style_designator: ROUND, FLAT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5970-00-938-0758, 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
B511001221
NSN: 5970-00-938-0758
FSC: 5970
CAGE: 88818 — KEARFOTT CORPORATION DIV GUIDANCE AND NAVIGATION DIVISION (USA)
SPECIFICATIONS
materialBERYLLIUM OXIDE OVERALL
overall_height0.030 INCHES NOMINAL IN
inside_diameter0.120 INCHES NOMINAL IN
outside_diameter0.375 INCHES NOMINAL IN
style_designatorROUND, FLAT
NSN5970-00-938-0758
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available INSULATOR,WASHER TITLE COMPONENT PN B511001221 MFR INSULATOR,WASHER
KEY FEATURES
•
INSIDE DIAMETER: 0.120 INCHES NOMINAL IN
•
STYLE DESIGNATOR: ROUND, FLAT
•
MATERIAL: BERYLLIUM OXIDE OVERALL
•
OUTSIDE DIAMETER: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE DIAMETER0.120 INCHES NOMINAL IN
STYLE DESIGNATORROUND, FLAT
MATERIALBERYLLIUM OXIDE OVERALL
OUTSIDE DIAMETER0.375 INCHES NOMINAL IN
OVERALL HEIGHT0.030 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
556906Interchangeable
interchangeable cross-reference
interchangeable
X1288Interchangeable
interchangeable cross-reference
interchangeable
160152H1Interchangeable
interchangeable cross-reference
interchangeable
5201-492-307REDInterchangeable
interchangeable cross-reference
interchangeable
95-1059-3171-102Interchangeable
interchangeable cross-reference
interchangeable
G377565Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B511001221?
B511001221 is a INSULATOR,WASHER.
What parts can replace B511001221?
There are 12 known substitutes for B511001221: 556906, X1288, 160152H1 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B511001221?
B511001221 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5970-00-938-0758. 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: July 2026