The Cylinder Assy,air, cataloged under National Stock Number 1040-00-658-5563, is classified within Federal Supply Class 1040 (Chemical Weapons and Equipment) of the Weapons group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1040-00-658-5563 |
| Item Name | Cylinder Assy,air |
| FSC / FSG | 1040 / 10 — Chemical Weapons and Equipment |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY SAND CASTING,ALLOY 356.0 TEMP T6,SPEC QQ-A-601;5.260 IN.L;4 HOLES .402 IN.DIA;1 HOLE .375 IN.DIA;4 HOLES 5/16-18 UNC-2B;6 HOLES 1/4-20 UNC-2B IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Reference | Meaning |
|---|---|
| D31-15-1239 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1040-00-658-5563 is a Cylinder Assy,air, classified under FSC 1040, Chemical Weapons and Equipment. Status: active.
Key specifications for 1040-00-658-5563: General Characteristics Item Description: ALUMINUM ALLOY SAND CASTING,ALLOY 356.0 TEMP T6,SPEC QQ-A-601;5.260 IN.L;4 HOLES .402 IN.DIA;1 HOLE .375 IN.DIA;4 HOLES 5/16-18 UNC-2B;6 HOLES 1/4-20 UNC-2B IN; End Item Identification: 1040-00-587-3618. 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 1040-00-658-5563 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.