The Mast Base Bracket, cataloged under National Stock Number 5340-01-643-6932, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Gravois Aluminum Boats Llc Dba Metal Shark Boats Div Metal Shark. 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 | 5340-01-643-6932 |
| Primary Part Number | 20043A |
| Item Name | Mast Base Bracket |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Gravois Aluminum Boats Llc Dba Metal Shark Boats Div Metal Shark |
| Status | ACTIVE |
| 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 |
|---|---|
| 20043A PRIMARY | Gravois Aluminum Boats Llc Dba Metal Shark Boats Div Metal Shark (USA) |
NSN 5340-01-643-6932 is a Mast Base Bracket, manufactured by Gravois Aluminum Boats Llc Dba Metal Shark Boats Div Metal Shark, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-643-6932 has 1 manufacturer part number on file: 20043A (Gravois Aluminum Boats Llc Dba Metal Shark Boats Div Metal Shark).
Key specifications for 20043A: End Item Identification: 26 FT TRAILER-ABLE AIDS TO NAVIGATION P/N 26TANB FT. 0 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.