The Barrel,extension Unit, cataloged under National Stock Number 1680-01-116-4503, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Huck International, Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-01-116-4503 |
| Primary Part Number | 200759 |
| Item Name | Barrel,extension Unit |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY 7075-T73 QQ-A-282,5.500 IN. LG,0.830 IN. DIA,ANODIZE MIL-A-8625A,TYPE 2 A |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 200759 PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| 200759 | 3/9 Design control — primary reference U.S. Government activity |
NSN 1680-01-116-4503 is a Barrel,extension Unit, manufactured by Huck International, Inc, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-116-4503 has 1 manufacturer part number on file: 200759 (Huck International, Inc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-480-8854. Verify interchangeability with system specifications before substitution.
Key specifications for 200759: General Characteristics Item Description: ALUMINUM ALLOY 7075-T73 QQ-A-282,5.500 IN. LG,0.830 IN. DIA,ANODIZE MIL-A-8625A,TYPE 2 A. 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.
NSN 1680-01-116-4503 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.