The Interlock,barrel Extension, cataloged under National Stock Number 1005-00-856-2109, is classified within Federal Supply Class 1005 (Guns, Through 30mm) of the Weapons 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1005-00-856-2109 |
| Primary Part Number | 7791278 |
| Item Name | Interlock,barrel Extension |
| FSC / FSG | 1005 / 10 — Guns, Through 30mm |
| Manufacturer | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,ASTM A322,4340 AND ASTM A331,4340;0.855 IN.LG;0.436 IN.W;0.322IN.H;SHAFT HOLE 0.193 IN.DIA;CENTER OFSHAFT HOLE LOCATED 0.151 IN.FROM ROUNDED END;HEAT TREATMENT:SPEC MIL-H-6875:QUENCH AND TEMPER TO HARDNESS SPECIFIED;SURFACE TREATMENT:MANGANESE PHOSPHATE,MIL-P-16232,TYPE M,CLASS 1 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 |
|---|---|
| 7791278 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| Reference | Meaning |
|---|---|
| 1005008562109 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 1005-00-856-2109 is a Interlock,barrel Extension, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 1005, Guns, Through 30mm. Status: active.
NSN 1005-00-856-2109 has 1 manufacturer part number on file: 7791278 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for 7791278: General Characteristics Item Description: STEEL,ASTM A322,4340 AND ASTM A331,4340;0.855 IN.LG;0.436 IN.W;0.322IN.H;SHAFT HOLE 0.193 IN.DIA;CENTER OFSHAFT HOLE LOCATED 0.151 IN.FROM ROUNDED END;HEAT TREATMENT:SPEC MIL-H-6875:QUENCH AND TEMPER TO HARDNESS SPECIFIED;SURFACE TREATMENT:MANGANESE PHOSPHATE,MIL-P-16232,TYPE M,CLASS 1 IN. 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 1005-00-856-2109 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.