The Tube Assembly,metal, cataloged under National Stock Number 4710-01-347-5781, is classified within Federal Supply Class 4710 (Pipe, Tube and Rigid Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is H-K Connecticut Holding Company. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4710-01-347-5781 |
| Primary Part Number | 2186703-01 |
| Item Name | Tube Assembly,metal |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | H-K Connecticut Holding Company |
| Status | ACTIVE |
| Unable to Decode | UNABLE TO DECODE |
| Material Document and Classification | AMS 5576 ASSN STD SINGLE MATERIAL RESPONSE TUBING |
| Material | STEEL COMP 321 TUBING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2186703-01 PRIMARY | H-K Connecticut Holding Company (USA) |
| Reference | Meaning |
|---|---|
| 2186703-01 | C/1 Advisory reference — outside the item-of-supply concept Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
NSN 4710-01-347-5781 is a Tube Assembly,metal, manufactured by H-K Connecticut Holding Company, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-01-347-5781 has 1 manufacturer part number on file: 2186703-01 (H-K Connecticut Holding Company).
Key specifications for 2186703-01: Unable to Decode: UNABLE TO DECODE; Material Document and Classification: AMS 5576 ASSN STD SINGLE MATERIAL RESPONSE TUBING; Material: STEEL COMP 321 TUBING. 3 specifications are 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 4710-01-347-5781 has DEMIL Code Q. 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.