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PartsTable / COMPONENT / FIT-221 1/16
FIT-221 1/16 ✓ 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 FIT-221 1/16 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5970-00-451-0971, 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
FIT-221 1/16
NSN: 5970-00-451-0971
FSC: 5970
CAGE: 92194 — BELDEN, INC. (USA)
SPECIFICATIONS
Part NumberFIT-221 1/16
NSN5970-00-451-0971
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available FIT-221 1/16 TITLE COMPONENT PN FIT-221 1/16 MFR FIT-221 1/16
KEY FEATURES
•
RECOVERED INSIDE DIAMETER: 0.031 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SHRINKABLE
•
RECOVERED WALL THICKNESS: 0.017 INCHES NOMINAL IN
•
FLEXIBILITY: FLEXIBLE
•
EXPANDED INSIDE DIAMETER: 0.063 INCHES NOMINAL IN
•
ENVIRONMENTAL PROTECTION: MILDEW RESISTANT
•
COLOR: CLEAR
•
DIELECTRIC WITHSTANDING VOLTAGE IN VOLTS: 500.0
TECHNICAL CHARACTERISTICS (FLIS)
RECOVERED INSIDE DIAMETER0.031 INCHES NOMINAL IN
STYLE DESIGNATORSHRINKABLE
RECOVERED WALL THICKNESS0.017 INCHES NOMINAL IN
FLEXIBILITYFLEXIBLE
EXPANDED INSIDE DIAMETER0.063 INCHES NOMINAL IN
ENVIRONMENTAL PROTECTIONMILDEW RESISTANT
COLORCLEAR
DIELECTRIC WITHSTANDING VOLTAGE IN VOLTS500.0
TEMP RATING-67.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
OVERALL LENGTH4.000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
91589Interchangeable
interchangeable cross-reference
interchangeable
1559AS198-1Interchangeable
interchangeable cross-reference
interchangeable
CLASS2Interchangeable
interchangeable cross-reference
interchangeable
5970PL0861923Interchangeable
interchangeable cross-reference
interchangeable
MIL-I-23053/5Interchangeable
interchangeable cross-reference
interchangeable
FIT-221 1/8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FIT-221 1/16?
FIT-221 1/16 is a FIT-221 1/16.
What parts can replace FIT-221 1/16?
There are 16 known substitutes for FIT-221 1/16: 91589, 1559AS198-1, CLASS2 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FIT-221 1/16?
FIT-221 1/16 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5970-00-451-0971. 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