The Shield,electron Tube, cataloged under National Stock Number 5960-00-578-8449, is classified within Federal Supply Class 5960 (Electron Tubes and Associated Hardware) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5960-00-578-8449 |
| Primary Part Number | B7421491P1 |
| Item Name | Shield,electron Tube |
| FSC / FSG | 5960 / 59 — Electron Tubes and Associated Hardware |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 FRICTION SINGLE MOUNTING FACILITY |
| Tube Envelope Accommodated Maximum Diameter | 1.500 INCHES IN |
| Overall Diameter | 2.000 INCHES NOMINAL IN |
| Style Designator | CYLINDRICAL |
| Accommodated Item Securing Device Type | FRICTION FASTENER |
| Surface Treatment | ANODIZE |
| Material | ALUMINUM ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| B7421491P1 | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| SM-B-331784 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5960-00-578-8449 is a Shield,electron Tube, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5960, Electron Tubes and Associated Hardware. Status: active.
NSN 5960-00-578-8449 has 1 manufacturer part number on file: B7421491P1 (Lockheed Martin Corporation Div Rms).
Key specifications for B7421491P1: Mounting Facility Type and Quantity: 1 FRICTION SINGLE MOUNTING FACILITY; Tube Envelope Accommodated Maximum Diameter: 1.500 INCHES IN; Overall Diameter: 2.000 INCHES NOMINAL IN; Style Designator: CYLINDRICAL. 7 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.