The Parts Kit-Seal Replacement-Mecha, cataloged under National Stock Number 1020-01-491-8343, is classified within Federal Supply Class 1020 (Guns, Over 125mm Through 150mm) of the Weapons group. The manufacturer of record is Hupp & Associates Inc Dba Hupp Aerospace/defense. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1020-01-491-8343 |
| Primary Part Number | HAD3N473 |
| Item Name | Parts Kit-Seal Replacement-Mecha |
| FSC / FSG | 1020 / 10 — Guns, Over 125mm Through 150mm |
| Manufacturer | Hupp & Associates Inc Dba Hupp Aerospace/defense |
| Status | ACTIVE |
| General Characteristics Item Description | COMPONENT QUANTITY 7 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| HAD3N473 PRIMARY | Hupp & Associates Inc Dba Hupp Aerospace/defense (USA) |
| Reference | Meaning |
|---|---|
| 1020PL2054556 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 1020-01-491-8343 is a Parts Kit-Seal Replacement-Mecha, manufactured by Hupp & Associates Inc Dba Hupp Aerospace/defense, classified under FSC 1020, Guns, Over 125mm Through 150mm. Status: active.
NSN 1020-01-491-8343 has 1 manufacturer part number on file: HAD3N473 (Hupp & Associates Inc Dba Hupp Aerospace/defense).
Key specifications for HAD3N473: General Characteristics Item Description: COMPONENT QUANTITY 7. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.