The Shield,expansion, cataloged under National Stock Number 5340-01-030-9057, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Telemechanics Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-030-9057 |
| Primary Part Number | 341579 |
| Item Name | Shield,expansion |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Telemechanics Inc |
| Status | ACTIVE |
| Thread Provision | UNTHREADED |
| Hole Accommodation Diameter | 0.041 INCHES NOMINAL IN |
| Style Designator | PLUNGER, DOUBLE EXPANSION |
| Fastener Type | NAIL |
| Features Provided | CLOSED END |
| Insert Type for Which Designed | NAILED |
| Head Style | FLAT KEYED |
| Material | PLASTIC |
| Unit Quantity | 2 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 341579 PRIMARY | Telemechanics Inc (USA) |
| Reference | Meaning |
|---|---|
| 341579 | 5/9 Secondary reference American Telephone and Telegraph Co |
NSN 5340-01-030-9057 is a Shield,expansion, manufactured by Telemechanics Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-030-9057 has 1 manufacturer part number on file: 341579 (Telemechanics Inc).
Key specifications for 341579: Thread Provision: UNTHREADED; Hole Accommodation Diameter: 0.041 INCHES NOMINAL IN; Style Designator: PLUNGER, DOUBLE EXPANSION; Fastener Type: NAIL. 9 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.