The Retainer,optical Element, cataloged under National Stock Number 1240-01-049-3573, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. The manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1240-01-049-3573 |
| Primary Part Number | 11741177 |
| Item Name | Retainer,optical Element |
| FSC / FSG | 1240 / 12 — Optical Sighting and Ranging Equipment |
| Manufacturer | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| Status | ACTIVE |
| Hole or Slot Quantity | 4 |
| Drive Type | SLOTTED |
| Style Designator | RECESSED |
| Setscrew Notch | NOT PROVIDED |
| Material Document and Classification | WW-T-700/3, TEMPER T3 THRU T6 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-200/3, TEMPER T3 THRU T6 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/6, TEMPER T3 THRU T6 FED SPEC 1ST MATERIAL RESPONSE OR WW-T-700/6, TEMPER T3 THRU T6 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-200/8, TEMPER T3 THRU T6 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-225/8, TEMPER T3 THRU T6 FED SPEC 2ND MATERIAL RESPONSE |
| Recess Depth | 0.220 INCHES NOMINAL IN |
| Recess Diameter | 1.180 INCHES MINIMUM AND 1.185 INCHES MAXIMUM IN |
| Hole Chamfer Angle in Deg | 45.0 |
| Thread Size | AA1.2812 |
| Internal Annular Serration | NOT PROVIDED |
| Material | ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 6061 |
| 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 |
|---|---|
| 11741177 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
NSN 1240-01-049-3573 is a Retainer,optical Element, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
NSN 1240-01-049-3573 has 1 manufacturer part number on file: 11741177 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for 11741177: Hole or Slot Quantity: 4; Drive Type: SLOTTED; Style Designator: RECESSED; Setscrew Notch: NOT PROVIDED. 11 specifications are 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 1240-01-049-3573 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.