The Flange,port Extension Tube, cataloged under National Stock Number 1560-00-024-3271, is classified within Federal Supply Class 1560 (Airframe Structural Components) of the Aircraft and Airframe Components group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1560-00-024-3271 |
| Item Name | Flange,port Extension Tube |
| FSC / FSG | 1560 / 15 — Airframe Structural Components |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,MIL-S-4043,3.500 IN. THK,0.333 IN. MIN,0.353 IN. MAX DIA HOLE THRU 3 PLACES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 2340237 | 5/9 Secondary reference The Boeing Company |
| 2340237 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1560-00-024-3271 is a Flange,port Extension Tube, classified under FSC 1560, Airframe Structural Components. Status: active.
Key specifications for 1560-00-024-3271: General Characteristics Item Description: STEEL,MIL-S-4043,3.500 IN. THK,0.333 IN. MIN,0.353 IN. MAX DIA HOLE THRU 3 PLACES IN. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.