The Flap,wing Landing, cataloged under National Stock Number 1560-01-646-5840, is classified within Federal Supply Class 1560 (Airframe Structural Components) of the Aircraft and Airframe Components group. The manufacturer of record is H & R Parts Co Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 12 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1560-01-646-5840 |
| Primary Part Number | 4-5019-23 |
| Item Name | Flap,wing Landing |
| FSC / FSG | 1560 / 15 — Airframe Structural Components |
| Manufacturer | H & R Parts Co Inc |
| Status | ACTIVE |
| Supplementary Features | PART OF SKIN PANEL ASSEMBLY-UPPER,INBOARD FLAP, WING STATION 546.20 TO 584.48; FINISH: F-12.91 INTERIOR SURFACE ONLY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4-5019-23 | H & R Parts Co Inc (USA) |
| 4-5019-23 | Infinity Fabrication, Inc. (USA) |
| 4-5019-23 | Airborne Supply Dba Triumph Fabrications-Hot Springs Div Triumph Fabrications - Hot Springs (USA) |
| 4-5019-23 | Malones Cnc Machining Inc (USA) |
| 4-5019-23 | Pratt & Whitney H.a.c., Inc. (USA) |
| 4-5019-23 | Hexcel Corp Dba Hexcel Products Div Hexcel Structures & Interiors (USA) |
| 4-5019-23 | Limco Airepair Inc. (USA) |
| 4-5019-23 | Aero Space Composites Llc Dba Aerospace Composites (USA) |
| 4-5019-23 | Helicomb International, Inc. (USA) |
| 4-5019-23 | Rohr, Inc. Dba Rohr Industries Inc Div Rohr Inc., a Part of Collins Aerospace (USA) |
| 4-5019-23 | Bonded Technology Inc Sub of Newbond Inc (USA) |
| 4-5019-23 | Radius Aerospace-Fort Worth, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 4-5019-23 | 5/2 Secondary reference U.S. Government activity |
| 4-5019-23 | 5/9 Secondary reference Fleet Canada Inc |
| 4-5019-23 | 5/2 Secondary reference U.S. Government activity |
| 4-5019-23 | 5/2 Secondary reference U.S. Government activity |
| 4-5019-23 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1560-01-646-5840 is a Flap,wing Landing, manufactured by H & R Parts Co Inc, classified under FSC 1560, Airframe Structural Components. Status: active.
NSN 1560-01-646-5840 has 12 manufacturer part numbers on file: 4-5019-23 (H & R Parts Co Inc), 4-5019-23 (Infinity Fabrication, Inc.), 4-5019-23 (Airborne Supply Dba Triumph Fabrications-Hot Springs Div Triumph Fabrications - Hot Springs), 4-5019-23 (Malones Cnc Machining Inc), 4-5019-23 (Pratt & Whitney H.a.c., Inc.) and 7 more.
Key specifications for 4-5019-23: Supplementary Features: PART OF SKIN PANEL ASSEMBLY-UPPER,INBOARD FLAP, WING STATION 546.20 TO 584.48; FINISH: F-12.91 INTERIOR SURFACE ONLY; Part Name Assigned by Controlling Agency: BONDED PANEL ASSY; End Item Identification: B-52 AIRCRAFT. 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.
NSN 1560-01-646-5840 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.