The Stop,mechanical, cataloged under National Stock Number 5340-01-554-5189, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Thales Defense & Security Inc Dba Thales Communications Inc. 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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-554-5189 |
| Primary Part Number | 3400838-1 |
| Item Name | Stop,mechanical |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Thales Defense & Security Inc Dba Thales Communications Inc |
| Status | ACTIVE |
| Mounting Hole Quantity | 2 |
| Mounting Hole Type | UNTHREADED |
| 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 |
|---|---|
| 3400838-1 PRIMARY | Thales Defense & Security Inc Dba Thales Communications Inc (USA) |
NSN 5340-01-554-5189 is a Stop,mechanical, manufactured by Thales Defense & Security Inc Dba Thales Communications Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-554-5189 has 1 manufacturer part number on file: 3400838-1 (Thales Defense & Security Inc Dba Thales Communications Inc).
Key specifications for 3400838-1: Mounting Hole Quantity: 2; Special Features: RECTANGLE; Part Name Assigned by Controlling Agency: STOP SPRING; End Item Identification: 5820-01-536-0983, RADIO SET, VEHICULAR (MODEL AN/VRC-111). 2 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.