The Adapter,special, cataloged under National Stock Number 1720-01-663-0070, is classified within Federal Supply Class 1720 (Aircraft Launching Equipment) of the Aircraft Launch, Landing, and Ground Handling Equipment group. The manufacturer of record is York Precision Machining and Hydraulics, Llc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 1720-01-663-0070 |
| Primary Part Number | 52-3538-3 |
| Item Name | Adapter,special |
| FSC / FSG | 1720 / 17 — Aircraft Launching Equipment |
| Manufacturer | York Precision Machining and Hydraulics, Llc |
| Status | ACTIVE |
| Overall Diameter | 19.980 INCHES NOMINAL IN |
| Criticality Code Justification | FEAT |
| Thread Size and Series/type Designator | 20 UNIFIED NATIONAL COARSE (UNC) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 52-3538-3 | York Precision Machining and Hydraulics, Llc (USA) |
| 52-3538-3 | Capy Machine Shop Inc. Dba Capy Machine Shop Inc (USA) |
| Reference | Meaning |
|---|---|
| 52-3538-3 | 5/9 Secondary reference Apex Manufacturing Company, Inc. Dba Apex Manufacturing Co |
| 52-3538-3 | 5/9 Secondary reference Beaver Aerospace & Defense, Inc. |
| 52-3538-3 | 3/2 Design control — primary reference U.S. Government activity |
| 52-3538-3 | 5/9 Secondary reference Fort Walton Machining Inc |
| 52-3538-3 | 5/9 Secondary reference James Choe Dba Pioneer Machine and Tooling Co Div Pioneer Machine |
NSN 1720-01-663-0070 is a Adapter,special, manufactured by York Precision Machining and Hydraulics, Llc, classified under FSC 1720, Aircraft Launching Equipment. Status: active.
NSN 1720-01-663-0070 has 2 manufacturer part numbers on file: 52-3538-3 (York Precision Machining and Hydraulics, Llc), 52-3538-3 (Capy Machine Shop Inc. Dba Capy Machine Shop Inc).
Key specifications for 52-3538-3: Overall Diameter: 19.980 INCHES NOMINAL IN; Criticality Code Justification: FEAT; Overall Width: 1.00 INCHES NOMINAL IN; Special Features: USED AS PART OF A SYSTEM SUPPORTING THE LAUNCH AND OR RECOVERY OF AIRCRAFT AND IS ASSENTIAL TO SYSTEM PERFORMANCE OR OPERATION, OR PRESERVATION OF LIFE OR SAFETY OF OPERATIONAL PERSONEL. AS SUCH THE ITEM HAS BEEN DESIGNATED AS CRITICAL APPLICATION ITEM. ANY DEVIATION FROM THIS SPECIFICATION WITHOUT WRITTEN APPROVAL FROM THE NAVEL AIR SYSTEM COMMAND (NAVAIR) SUPPORT EQUIPMENT AND AIRCRAFT LAUNCH AND RECOVERY EQUIPMENT IS STRICTLY PROHIBITED.. 3 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1720-01-663-0070 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.