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Technical Data Sheet
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12012037 — BASE,LEAF SIGHT

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

12012037: BASE,LEAF SIGHT.

The BASE,LEAF SIGHT is a the manufacturer industrial component. Key specifications include end_item_identification: LAUNCHER,GRENADE 40MM,M203A1 MM. This part is cataloged in the U.S.

Government catalog under NSN 1010-01-441-5507, 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
12012037
NSN: 1010-01-441-5507
FSC: 1010 — Guns, Over 30mm up to 75mm
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
end_item_identificationLAUNCHER,GRENADE 40MM,M203A1 MM
NSN1010-01-441-5507
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BASE,LEAF SIGHT TITLE COMPONENT PN 12012037 MFR BASE,LEAF SIGHT
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONLAUNCHER,GRENADE 40MM,M203A1 MM
OTHER ITEMS IN FSC 1010 — Guns, Over 30mm up to 75mm
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1010-01-149-1269 1010-01-167-6630 1010-01-168-8062 1010-01-178-7840 1010-01-185-6948 1010-01-227-2554 1010-01-247-7917
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 12012037?
12012037 is a BASE,LEAF SIGHT.
What is the NSN for 12012037?
12012037 is cataloged in the U.S. Government catalog under NSN 1010-01-441-5507. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.