The Modification Kit,gun,weapon, cataloged under National Stock Number 1005-01-666-1298, is classified within Federal Supply Class 1005 (Guns, Through 30mm) of the Weapons group. The manufacturer of record is Sig Sauer Inc.. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1005-01-666-1298 |
| Primary Part Number | WCALX-MCX-11B-556-TAP |
| Item Name | Modification Kit,gun,weapon |
| FSC / FSG | 1005 / 10 — Guns, Through 30mm |
| Manufacturer | Sig Sauer Inc. |
| Status | ACTIVE |
| Unpackaged Unit Length | 11.5 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| WCALX-MCX-11B-556-TAP PRIMARY | Sig Sauer Inc. (USA) |
| Reference | Meaning |
|---|---|
| CALX-MCX-11B-556 | 5/9 Secondary reference Sig Sauer Inc. |
| CALX-MCX-11B-556-TAP | C/1 Advisory reference — outside the item-of-supply concept Sig Sauer Inc. |
NSN 1005-01-666-1298 is a Modification Kit,gun,weapon, manufactured by Sig Sauer Inc., classified under FSC 1005, Guns, Through 30mm. Status: active.
NSN 1005-01-666-1298 has 1 manufacturer part number on file: WCALX-MCX-11B-556-TAP (Sig Sauer Inc.).
Key specifications for WCALX-MCX-11B-556-TAP: Unpackaged Unit Length: 11.5 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: CAL-X KIT; End Item Identification: SIGMCX. 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 1005-01-666-1298 has DEMIL Code D. 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.