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HDS550 ✓ 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 SIGHT,HOLOGRAPHIC 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 1240-01-485-0441, 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
HDS550
NSN: 1240-01-485-0441
FSC: 1240
CAGE: 1MLU1 — L-3 COMMUNICATIONS EOTECH, INC. DBA EOTECH (USA)
SPECIFICATIONS
Part NumberHDS550
NSN1240-01-485-0441
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SIGHT,HOLOGRAPHIC TITLE COMPONENT PN HDS550 MFR SIGHT,HOLOGRAPHIC
KEY FEATURES
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GENERAL CHARACTERISTICS ITEM DESCRIPTION: WORKS WITH ANY NIGHT VISION DEVICE IN ANY NIGHT VISION ENVIRONMENT; MEMBRANE SWITCH IS PRESSED TO TOGGLE INSTANTANEOUSLY BETWEEN NORMAL AND NIGHT VISION MODES; BRIGHTNESS DYNAMIC RANGE OF 28,000 TO 1 NORMAL MODE WITH 20 BRIGHTNESS SETTINGS; NIGHT VISION MODE PROVIDES 10 ADDITIONAL BRIGHTNESS SETTINGS BRINGING THE TOTAL BRIGHTNESS DYNAMIC RANGE TO 10,000,000
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONWORKS WITH ANY NIGHT VISION DEVICE IN ANY NIGHT VISION ENVIRONMENT; MEMBRANE SWITCH IS PRESSED TO TOGGLE INSTANTANEOUSLY BETWEEN NORMAL AND NIGHT VISION MODES; BRIGHTNESS DYNAMIC RANGE OF 28,000 TO 1 NORMAL MODE WITH 20 BRIGHTNESS SETTINGS; NIGHT VISION MODE PROVIDES 10 ADDITIONAL BRIGHTNESS SETTINGS BRINGING THE TOTAL BRIGHTNESS DYNAMIC RANGE TO 10,000,000
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
M-552Interchangeable
interchangeable cross-reference
interchangeable
MA-1Interchangeable
interchangeable cross-reference
interchangeable
55147Interchangeable
interchangeable cross-reference
interchangeable
350216Interchangeable
interchangeable cross-reference
interchangeable
X1539DPC32Interchangeable
interchangeable cross-reference
interchangeable
X1553EITEM9Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is HDS550?
HDS550 is a SIGHT,HOLOGRAPHIC.
What parts can replace HDS550?
There are 11 known substitutes for HDS550: M-552, MA-1, 55147 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for HDS550?
HDS550 is cataloged in the Federal Logistics Information System (FLIS) under NSN 1240-01-485-0441. 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