The Know,aircraft,mater, cataloged under National Stock Number 5340-01-475-6471, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Aeronautical Systems Support Company Dba Lmassc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Know,aircraft,mater |
| FSC / FSG | 5340 — Hardware, Commercial (FSG 53) |
| Manufacturers | Lockheed Martin Aeronautical Systems Support Company Dba Lmassc (CAGE 74703) |
| Parameter | Value |
|---|---|
| NSN | 5340-01-475-6471 |
| Primary Part Number | MS21385-10HBN |
| Item Name | Know,aircraft,mater |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Lockheed Martin Aeronautical Systems Support Company Dba Lmassc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| MS21385-10HBN PRIMARY | Lockheed Martin Aeronautical Systems Support Company Dba Lmassc (USA) |
| Reference | Meaning |
|---|---|
| MS21385-10HBN | 5/9 Secondary reference Lockheed Martin Services, Llc |
NSN 5340-01-475-6471 is a Know,aircraft,mater, manufactured by Lockheed Martin Aeronautical Systems Support Company Dba Lmassc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-475-6471 has 1 manufacturer part number on file: MS21385-10HBN (Lockheed Martin Aeronautical Systems Support Company Dba Lmassc).
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5340-01-475-6471 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.