The Rib,airfoil, cataloged under National Stock Number 1560-01-646-3971, is classified within Federal Supply Class 1560 (Airframe Structural Components) of the Aircraft and Airframe Components group. The manufacturer of record is Fmw, Inc.. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Rib,airfoil |
| FSC / FSG | 1560 — Airframe Structural Components (FSG 15) |
| Manufacturers | Fmw, Inc. (CAGE 1QJK4); Infinity Fabrication, Inc. (CAGE 06DM5); Nordam Group Llc, the Div Nordam (CAGE 29957); Malones Cnc Machining Inc (CAGE 2V045); Camnetics Manufacturing Corporation (CAGE 0P657) |
| Parameter | Value |
|---|---|
| NSN | 1560-01-646-3971 |
| Primary Part Number | 25-8866-20 |
| Item Name | Rib,airfoil |
| FSC / FSG | 1560 / 15 — Airframe Structural Components |
| Manufacturer | Fmw, Inc. |
| Status | ACTIVE |
| 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 |
|---|---|
| 25-8866-20 | Fmw, Inc. (USA) |
| 25-8866-20 | Infinity Fabrication, Inc. (USA) |
| 25-8866-20 | Nordam Group Llc, the Div Nordam (USA) |
| 25-8866-20 | Malones Cnc Machining Inc (USA) |
| 25-8866-20 | Camnetics Manufacturing Corporation (USA) |
| 25-8866-20 | Volumatic Inc Dba Volumatic Inc (USA) |
| 25-8866-20 | D-J Engineering Inc Dba D-J Engineering Inc (USA) |
| 25-8866-20 | Aero Components, Llc (USA) |
| Reference | Meaning |
|---|---|
| 25-8866 | D/9 Drawing number reference only U.S. Government activity |
| 25-8866-20 | 5/9 Secondary reference H & R Parts Co Inc |
| 25-8866-20 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1560-01-646-3971 is a Rib,airfoil, manufactured by Fmw, Inc., classified under FSC 1560, Airframe Structural Components. Status: active.
NSN 1560-01-646-3971 has 8 manufacturer part numbers on file: 25-8866-20 (Fmw, Inc.), 25-8866-20 (Infinity Fabrication, Inc.), 25-8866-20 (Nordam Group Llc, the Div Nordam), 25-8866-20 (Malones Cnc Machining Inc), 25-8866-20 (Camnetics Manufacturing Corporation) and 3 more.
1 possible match (shared part number, not a government interchangeability claim): 1560-01-646-3978. Verify interchangeability with system specifications before substitution.
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 1560-01-646-3971 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.