The Guide,curtain, cataloged under National Stock Number 1240-01-055-9718, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1240-01-055-9718 |
| Primary Part Number | 12266668-1 |
| Item Name | Guide,curtain |
| FSC / FSG | 1240 / 12 — Optical Sighting and Ranging Equipment |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| General Characteristics Item Description | MATERIAL:NYLATRON GS;INTERPRET DRAWING IN ACCORDANCE WITH STANDARDS PRESCRIBED BY MIL-STD-100;11 DEGREE TO 15DEGREE TYP TOL. NON-CUMULATIVE,16 SPACES;GUIDE HAS 17 HOLES WITH DIAMETER OFHOLES 0.201;HAS 3 COUNTER SUNK HOLES |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 12266668-1 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 12266668-1 | Basic Rubber and Plastics Co. (USA) |
| Reference | Meaning |
|---|---|
| 6695-557 | 5/9 Secondary reference Recon/optical, Inc. |
NSN 1240-01-055-9718 is a Guide,curtain, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
NSN 1240-01-055-9718 has 2 manufacturer part numbers on file: 12266668-1 (U S Army Tank Automotive Command Amsta-Im-Mm), 12266668-1 (Basic Rubber and Plastics Co.).
Key specifications for 12266668-1: General Characteristics Item Description: MATERIAL:NYLATRON GS;INTERPRET DRAWING IN ACCORDANCE WITH STANDARDS PRESCRIBED BY MIL-STD-100;11 DEGREE TO 15DEGREE TYP TOL. NON-CUMULATIVE,16 SPACES;GUIDE HAS 17 HOLES WITH DIAMETER OFHOLES 0.201;HAS 3 COUNTER SUNK HOLES. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1240-01-055-9718 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.