BG-18 — FILTER,LIGHT,TELESCOPIC INSTRUME

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

BG-18: FILTER,LIGHT,TELESCOPIC INSTRUME.

FILTER,LIGHT,TELESCOPIC INSTRUME. Key specifications include overall_diameter: 1.670 INCHES NOMINAL IN, overall_thickness: 0.130 INCHES NOMINAL IN, fsc_application_data: TELESCOPE. This part is cataloged in the U.S.

Government catalog under NSN 1240-00-007-8429, 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

BG-18

NSN: 1240-00-007-8429
FSC: 1240 — Optical Sighting and Ranging Equipment
CAGE: 55736 — SCHOTT GLASS TECHNOLOGIES INC (USA)

SPECIFICATIONS

overall_diameter	1.670 INCHES NOMINAL IN
overall_thickness	0.130 INCHES NOMINAL IN
fsc_application_data	TELESCOPE
NSN	1240-00-007-8429

COMPONENT DIAGRAM

KEY FEATURES

•

FSC APPLICATION DATA: TELESCOPE

•

OVERALL DIAMETER: 1.670 INCHES NOMINAL IN

•

OVERALL THICKNESS: 0.130 INCHES NOMINAL IN

TECHNICAL CHARACTERISTICS

FSC APPLICATION DATA	TELESCOPE
OVERALL DIAMETER	1.670 INCHES NOMINAL IN
OVERALL THICKNESS	0.130 INCHES NOMINAL IN
SPECIAL FEATURES	WHITE LIGHT TRANSMISSION TO BE AT LEAST 25 PCT;OPTICAL DENSITY AT 0.6943 MICRONS TO BE AT LEAST 5.0;LIGHT DEVIATION NOT TO EXCEED 2 MIN OF ARC;SURFACE QUALITY 80-50 PER MIL SPEC MIL-0-13830;BOTH FLAT SURFACES POLISHED;CHAMFER EDGES 45 DEG

OTHER ITEMS IN FSC 1240 — Optical Sighting and Ranging Equipment

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

1240-00-000-0160 1240-00-001-4014 1240-00-001-4015 1240-00-001-4488 1240-00-003-1076 1240-00-003-8404 1240-00-003-8405 1240-00-003-8406

SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — mutilation + specific procedure

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FREQUENTLY ASKED QUESTIONS

What is BG-18?

BG-18 is a FILTER,LIGHT,TELESCOPIC INSTRUME.

What is the NSN for BG-18?

BG-18 is cataloged in the U.S. Government catalog under NSN 1240-00-007-8429. This indicates validated use in U.S. government and defense supply chains.

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BG-18 — FILTER,LIGHT,TELESCOPIC INSTRUME

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