The Stiffener,aircraft, cataloged under National Stock Number 1560-01-692-5528, is classified within Federal Supply Class 1560 (Airframe Structural Components) of the Aircraft and Airframe Components group. The manufacturer of record is Infinity Fabrication, Inc.. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1560-01-692-5528 |
| Primary Part Number | 39-4407-4 |
| Item Name | Stiffener,aircraft |
| FSC / FSG | 1560 / 15 — Airframe Structural Components |
| Manufacturer | Infinity Fabrication, Inc. |
| Status | ACTIVE |
| Material Document and Classification | QQ-A-287 0 TEMP ASSN STD SINGLE MATERIAL RESPONSE |
| Material Thickness | 0.063 INCHES NOMINAL IN |
| Aircraft Location | TIP GEAR-STRUT DOOR WING TRAILING EDGE |
| Material | ALUMINUM ALLOY 7075 |
| Aircraft Mission Design Series | B-52 |
| 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 |
|---|---|
| 39-4407-4 | Infinity Fabrication, Inc. (USA) |
| 39-4407-4 | Nordam Group Llc, the Div Nordam (USA) |
| 39-4407-4 | D-J Engineering Inc Dba D-J Engineering Inc (USA) |
| 39-4407-4 | Fmw, Inc. (USA) |
| 39-4407-4 | Malones Cnc Machining Inc (USA) |
| 39-4407-4 | Camnetics Manufacturing Corporation (USA) |
| 39-4407-4 | Volumatic Inc Dba Volumatic Inc (USA) |
| 39-4407-4 | Aero Components, Llc (USA) |
| Reference | Meaning |
|---|---|
| 39-4407 | D/9 Drawing number reference only U.S. Government activity |
| 39-4407-4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1560-01-692-5528 is a Stiffener,aircraft, manufactured by Infinity Fabrication, Inc., classified under FSC 1560, Airframe Structural Components. Status: active.
NSN 1560-01-692-5528 has 8 manufacturer part numbers on file: 39-4407-4 (Infinity Fabrication, Inc.), 39-4407-4 (Nordam Group Llc, the Div Nordam), 39-4407-4 (D-J Engineering Inc Dba D-J Engineering Inc), 39-4407-4 (Fmw, Inc.), 39-4407-4 (Malones Cnc Machining Inc) and 3 more.
2 possible matches (shared part number, not a government interchangeability claim): 1560-01-692-5536, 1560-01-692-7361. Verify interchangeability with system specifications before substitution.
Key specifications for 39-4407-4: Material Document and Classification: QQ-A-287 0 TEMP ASSN STD SINGLE MATERIAL RESPONSE; Overall Length: 13.00 INCHES NOMINAL IN; Overall Width: 1.800 INCHES NOMINAL IN; Material Thickness: 0.063 INCHES NOMINAL IN. 5 specifications are 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 1560-01-692-5528 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.