The Sleeve Assembly, cataloged under National Stock Number 1005-00-591-0039, is classified within Federal Supply Class 1005 (Guns, Through 30mm) of the Weapons group. The manufacturer of record is Army, United States Department of the Dba Rock Island Arsenal Jmtc. Government technical data includes 2 specifications, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1005-00-591-0039 |
| Primary Part Number | 8420271 |
| Item Name | Sleeve Assembly |
| FSC / FSG | 1005 / 10 — Guns, Through 30mm |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| Overall Diameter | 0.440 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 8420271 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
NSN 1005-00-591-0039 is a Sleeve Assembly, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 1005, Guns, Through 30mm. Status: active.
NSN 1005-00-591-0039 has 1 manufacturer part number on file: 8420271 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
Key specifications for 8420271: Overall Diameter: 0.440 INCHES NOMINAL IN; Overall Length: 0.760 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: SLEEVE ASSEMBLY,MOLDING; End Item Identification: M-39A/1 AND M-39A/2 20 MM AUTO GUN USED ON F-4 PHANTOM AIRCRAFT A. 2 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.
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.