The Piston,gun Gas Cylinder, cataloged under National Stock Number 1005-00-157-5299, is classified within Federal Supply Class 1005 (Guns, Through 30mm) of the Weapons group. The manufacturer of record is Meggitt Aerospace Limited. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 1005-00-157-5299 |
| Primary Part Number | 7R9639954 |
| Item Name | Piston,gun Gas Cylinder |
| FSC / FSG | 1005 / 10 — Guns, Through 30mm |
| Manufacturer | Meggitt Aerospace Limited |
| Status | ACTIVE |
| 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 |
|---|---|
| 7R150 | Meggitt Aerospace Limited (GBR) |
| AC09111 | Meggitt Aerospace Limited (GBR) |
| 7R9639954 PRIMARY | Meggitt Aerospace Limited (GBR) |
| 7R158 | Bae Systems (operations) Limited (GBR) |
| Reference | Meaning |
|---|---|
| 7R158 | 5/9 Secondary reference British Aerospace (military Aircraft & Aerostructures) |
| 7R158 | 5/9 Secondary reference Bae Systems Plc |
NSN 1005-00-157-5299 is a Piston,gun Gas Cylinder, manufactured by Meggitt Aerospace Limited, classified under FSC 1005, Guns, Through 30mm. Status: active.
NSN 1005-00-157-5299 has 4 manufacturer part numbers on file: 7R150 (Meggitt Aerospace Limited), AC09111 (Meggitt Aerospace Limited), 7R9639954 (Meggitt Aerospace Limited), 7R158 (Bae Systems (operations) Limited).
Key specifications for 7R9639954: Special Features: CARBON CHROMATE STEEL,HARDNESS RATING 800-840 DEG C; 1.090 IN. W; 0.995 IN. OD; W/TWO 0.025 IN. 45.0 DEG CHAMFER IN. 0 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 1005-00-157-5299 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.