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Technical Data Sheet

HI21 — Technical Data Sheet

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LENNAN LIGHTS INC · 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 INDICATOR,HUMIDITY,PLUG is a LENNAN LIGHTS INC industrial component. Key specifications include OVERALL LENGTH: 0.688 INCHES NOMINAL IN, THREAD DIRECTION: RIGHT-HAND SINGLE END, FEATURES PROVIDED: REFILLABLE, NOMINAL THREAD SIZE: 1.438 INCHES SINGLE END IN, THREAD QUANTITY PER INCH: 18 SINGLE END, THREAD SERIES DESIGNATOR: UNS SINGLE END. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6685-00-641-3176, 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
HI21
NSN: 6685-00-641-3176
FSC: 6685
CAGE: 81248 — LENNAN LIGHTS INC (USA)
SPECIFICATIONS
OVERALL LENGTH0.688 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND SINGLE END
FEATURES PROVIDEDREFILLABLE
NOMINAL THREAD SIZE1.438 INCHES SINGLE END IN
THREAD QUANTITY PER INCH18 SINGLE END
THREAD SERIES DESIGNATORUNS SINGLE END
NSN6685-00-641-3176
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: LENNAN LIGHTS INC INDICATOR,HUMIDITY,PLUG TITLE COMPONENT PN HI21 MFR LENNAN LIGHTS INC INDICATOR,HUMIDITY,PLU
KEY FEATURES
THREAD QUANTITY PER INCH: 18 SINGLE END
NOMINAL THREAD SIZE: 1.438 INCHES SINGLE END IN
THREAD DIRECTION: RIGHT-HAND SINGLE END
FEATURES PROVIDED: REFILLABLE
THREAD SERIES DESIGNATOR: UNS SINGLE END
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH0.688 INCHES NOMINAL IN
THREAD QUANTITY PER INCH18 SINGLE END
NOMINAL THREAD SIZE1.438 INCHES SINGLE END IN
THREAD DIRECTIONRIGHT-HAND SINGLE END
FEATURES PROVIDEDREFILLABLE
THREAD SERIES DESIGNATORUNS SINGLE END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
C48S18-21Interchangeable
interchangeable cross-reference
interchangeable
GC14-21P1Interchangeable
interchangeable cross-reference
interchangeable
C48S18-21Q10Interchangeable
interchangeable cross-reference
interchangeable
4L540Interchangeable
interchangeable cross-reference
interchangeable
27-1240PInterchangeable
interchangeable cross-reference
interchangeable
520Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is HI21?
HI21 is a INDICATOR,HUMIDITY,PLUG manufactured by LENNAN LIGHTS INC.
What parts can replace HI21?
There are 19 known substitutes for HI21: C48S18-21, GC14-21P1, C48S18-21Q10 and 16 more. Substitute compatibility should be verified for your specific system.
Is HI21 still available?
HI21 is currently cancelled.
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