The Holder,optical Element, cataloged under National Stock Number 1240-00-129-5824, 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 4 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1240-00-129-5824 |
| Primary Part Number | 8619831 |
| Item Name | Holder,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 |
| Supporting Object/surface Attachment Method | TWO 0.094 DIA HOLES COUNTERSUNK TO 0.172/0.182 DIA ON 0.687 MOUNTING CENTERS |
| Attachment to Item Supported Method | PRESSURE AT 45 DEG CHAMFER X 0.078/0.094 ALONG LENGTH |
| Surface Treatment | ENAMEL |
| Material | 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 |
|---|---|
| 8619831 | Spencer Industries Inc (USA) |
| 8619831 | Revere Electric Supply Co. (USA) |
| 8619831 | C. Crouthamel & Co., Inc. (USA) |
| 8619831 | Humboldt Machine Shop, Inc (USA) |
| A11670 | Autodyne Manufacturing Co Inc (USA) |
| 8619831 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
NSN 1240-00-129-5824 is a Holder,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 1240-00-129-5824 has 6 manufacturer part numbers on file: 8619831 (Spencer Industries Inc), 8619831 (Revere Electric Supply Co.), 8619831 (C. Crouthamel & Co., Inc.), 8619831 (Humboldt Machine Shop, Inc), A11670 (Autodyne Manufacturing Co Inc) and 1 more.
1 possible match (shared part number, not a government interchangeability claim): 1680-00-133-6275. Verify interchangeability with system specifications before substitution.
Key specifications for 8619831: Supporting Object/surface Attachment Method: TWO 0.094 DIA HOLES COUNTERSUNK TO 0.172/0.182 DIA ON 0.687 MOUNTING CENTERS; Attachment to Item Supported Method: PRESSURE AT 45 DEG CHAMFER X 0.078/0.094 ALONG LENGTH; Special Features: 0.984/1.000 LG X 0.391/0.406 W X 0.109/0.125 THK W; Surface Treatment: ENAMEL. 4 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 1240-00-129-5824 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.