The Support,structural Component,air, cataloged under National Stock Number 1560-01-157-0140, 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 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1560-01-157-0140 |
| Primary Part Number | 39-18356-503 |
| Item Name | Support,structural Component,air |
| FSC / FSG | 1560 / 15 — Airframe Structural Components |
| Manufacturer | Infinity Fabrication, Inc. |
| Status | ACTIVE |
| Material Document and Classification | MIL-S-25043 MIL SPEC SINGLE MATERIAL RESPONSE |
| Material Thickness | 0.050 INCHES NOMINAL IN |
| Aircraft Location | NOSE COWL |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 39-18356-503 | Infinity Fabrication, Inc. (USA) |
| 39-18356-503 | Malones Cnc Machining Inc (USA) |
| 39-18356-503 | Aero Components, Llc (USA) |
| 39-18356-503 | Northrop Grumman Technical Services, Inc. Div CAGE Code Should Not Be Used for Contract Awards (USA) |
| 39-18356-503 | Volumatic Inc Dba Volumatic Inc (USA) |
| 39-18356-503 | Nordam Group Llc, the Div Nordam (USA) |
| 39-18356-503 | D-J Engineering Inc Dba D-J Engineering Inc (USA) |
| 39-18356-503 | Fmw, Inc. (USA) |
| 39-18356-503 | Camnetics Manufacturing Corporation (USA) |
| Reference | Meaning |
|---|---|
| 39-18356-503 | 3/2 Design control — primary reference U.S. Government activity |
| 39-18356-503 | 5/2 Secondary reference U.S. Government activity |
NSN 1560-01-157-0140 is a Support,structural Component,air, manufactured by Infinity Fabrication, Inc., classified under FSC 1560, Airframe Structural Components. Status: active.
NSN 1560-01-157-0140 has 9 manufacturer part numbers on file: 39-18356-503 (Infinity Fabrication, Inc.), 39-18356-503 (Malones Cnc Machining Inc), 39-18356-503 (Aero Components, Llc), 39-18356-503 (Northrop Grumman Technical Services, Inc. Div CAGE Code Should Not Be Used for Contract Awards), 39-18356-503 (Volumatic Inc Dba Volumatic Inc) and 4 more.
Key specifications for 39-18356-503: Material Document and Classification: MIL-S-25043 MIL SPEC SINGLE MATERIAL RESPONSE; Overall Length: 3.800 INCHES NOMINAL IN; Overall Width: 2.500 INCHES NOMINAL IN; Material Thickness: 0.050 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 1560-01-157-0140 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.