The Fitting,special, cataloged under National Stock Number 1660-01-686-6325, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. The manufacturer of record is Tect Hypervelocity, Inc.. The record lists 9 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Fitting,special |
| FSC / FSG | 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment (FSG 16) |
| Manufacturers | Tect Hypervelocity, Inc. (CAGE 34336); Preci-Manufacturing, Incorporated (CAGE 66841); Malones Cnc Machining Inc (CAGE 2V045); Camnetics Manufacturing Corporation (CAGE 0P657); Forrest Machining Llc Dba Fmi Aerostructures (CAGE 0FRC8) |
| Parameter | Value |
|---|---|
| NSN | 1660-01-686-6325 |
| Primary Part Number | 520-10515-506 |
| Item Name | Fitting,special |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Tect Hypervelocity, Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 520-10515-506 | Tect Hypervelocity, Inc. (USA) |
| 520-10515-506 | Preci-Manufacturing, Incorporated (USA) |
| 520-10515-506 | Malones Cnc Machining Inc (USA) |
| 520-10515-506 | Camnetics Manufacturing Corporation (USA) |
| 520-10515-506 | Forrest Machining Llc Dba Fmi Aerostructures (USA) |
| 520-10515-506 | D-J Engineering Inc Dba D-J Engineering Inc (USA) |
| 520-10515-506 | Nordam Group Llc, the Div Nordam (USA) |
| 520-10515-506 | The Boeing Company Div Defense (USA) |
| 520-10515-506 | Harlow Aerostructures, Llc (USA) |
| Reference | Meaning |
|---|---|
| 520-10515-506 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1660-01-686-6325 is a Fitting,special, manufactured by Tect Hypervelocity, Inc., classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-686-6325 has 9 manufacturer part numbers on file: 520-10515-506 (Tect Hypervelocity, Inc.), 520-10515-506 (Preci-Manufacturing, Incorporated), 520-10515-506 (Malones Cnc Machining Inc), 520-10515-506 (Camnetics Manufacturing Corporation), 520-10515-506 (Forrest Machining Llc Dba Fmi Aerostructures) and 4 more.
No hazard code in the DLA record (HMIC N). 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.