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1040156 ✓ 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 1040156 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 6650-00-382-1740, 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
1040156
NSN: 6650-00-382-1740
FSC: 6650
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
Part Number1040156
NSN6650-00-382-1740
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 1040156 TITLE COMPONENT PN 1040156 MFR 1040156
KEY FEATURES
•
MATERIAL: GLASS OPTICAL
•
COMPOUND LENS EDGE THICKNESS: 0.12834 INCHES NOMINAL IN
•
BACK FOCAL LENGTH: 3.409 INCHES IN
•
FSC APPLICATION DATA: 1. FIRE CONTROL TELESCOPE MK 102 MOD 3
•
EQUIVALENT FOCAL LENGTH: 3.370 INCHES IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: JAN-G-174, GRADE B MIL SPEC SINGLE MATERIAL RESPONSE
•
ELEMENT LEFT SURFACE RADIUS: -13.154 INCHES IN
•
AXIAL THICKNESS: 0.35433 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALGLASS OPTICAL
COMPOUND LENS EDGE THICKNESS0.12834 INCHES NOMINAL IN
BACK FOCAL LENGTH3.409 INCHES IN
FSC APPLICATION DATA1. FIRE CONTROL TELESCOPE MK 102 MOD 3
EQUIVALENT FOCAL LENGTH3.370 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONJAN-G-174, GRADE B MIL SPEC SINGLE MATERIAL RESPONSE
ELEMENT LEFT SURFACE RADIUS-13.154 INCHES IN
AXIAL THICKNESS0.35433 INCHES NOMINAL IN
FRONT FOCAL LENGTH3.126 INCHES IN
ABBE CONSTANT56.200
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
52478Interchangeable
interchangeable cross-reference
interchangeable
71PB1Interchangeable
interchangeable cross-reference
interchangeable
A52478Interchangeable
interchangeable cross-reference
interchangeable
4-6331Interchangeable
interchangeable cross-reference
interchangeable
MILB11040Interchangeable
interchangeable cross-reference
interchangeable
S3475Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1040156?
1040156 is a 1040156.
What parts can replace 1040156?
There are 9 known substitutes for 1040156: 52478, 71PB1, A52478 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1040156?
1040156 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6650-00-382-1740. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026