The Tube Assembly,metal, cataloged under National Stock Number 4710-01-111-5869, 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 Macleod Inc. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4710-01-111-5869 |
| Primary Part Number | B1900-5111-A |
| Item Name | Tube Assembly,metal |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Macleod Inc |
| Status | ACTIVE |
| Design Form | PREBENT |
| Mating End Quantity | 1 SECOND END |
| Mating End Quantity | 1 FIRST END |
| Wall Thickness | 0.058 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND SINGLE END |
| Nominal Thread Size | 0.125 INCHES SECOND END IN |
| Nominal Thread Size | 0.250 INCHES FIRST END IN |
| End Connection Style | PLAIN SINGLE END |
| Tube Outside Diameter | 0.250 INCHES NOMINAL IN |
| Material | STEEL TUBING |
| Material | COPPER ALLOY SINGLE END |
| Thread Series Designator | NPT SINGLE END |
| 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 |
|---|---|
| B1900-5111-A PRIMARY | Macleod Inc (USA) |
| Reference | Meaning |
|---|---|
| E-W-B-1900-5100 | D/9 Drawing number reference only Macleod Inc |
NSN 4710-01-111-5869 is a Tube Assembly,metal, manufactured by Macleod Inc, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-01-111-5869 has 1 manufacturer part number on file: B1900-5111-A (Macleod Inc).
1 possible match (shared part number, not a government interchangeability claim): 2990-01-112-5737. Verify interchangeability with system specifications before substitution.
Key specifications for B1900-5111-A: Design Form: PREBENT; Mating End Quantity: 1 SECOND END; Mating End Quantity: 1 FIRST END; Wall Thickness: 0.058 INCHES NOMINAL IN. 12 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.
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.