The Electron Tube, cataloged under National Stock Number 5960-00-557-6944, 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 Argent Industries, Inc.. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5960-00-557-6944 |
| Primary Part Number | 1LB4 |
| Item Name | Electron Tube |
| FSC / FSG | 5960 / 59 — Electron Tubes and Associated Hardware |
| Manufacturer | Argent Industries, Inc. |
| Status | ACTIVE |
| Specification/standard Data | 80131-RELEASE213 MANUFACTURERS SPECIFICATION |
| 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 |
|---|---|
| 1LB4 | Argent Industries, Inc. (USA) |
| Reference | Meaning |
|---|---|
| RELEASE213 | 5/9 Secondary reference U.S. Government activity |
| 1LB4 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5960-00-557-6944 is a Electron Tube, manufactured by Argent Industries, Inc., classified under FSC 5960, Electron Tubes and Associated Hardware. Status: active.
NSN 5960-00-557-6944 has 1 manufacturer part number on file: 1LB4 (Argent Industries, Inc.).
Key specifications for 1LB4: Specification/standard Data: 80131-RELEASE213 MANUFACTURERS SPECIFICATION; Special Features: ENVELOPE MATERIAL: GLASS; MFG CLASS: PENTODE POWER AMPLIFIER. 1 specification is 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.