The Arm,valve,uplock Mech Mlg, cataloged under National Stock Number 1620-01-140-3385, is classified within Federal Supply Class 1620 (Aircraft Landing Gear Components) of the Aircraft Components and Accessories group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1620-01-140-3385 |
| Primary Part Number | 74A420616-2004 |
| Item Name | Arm,valve,uplock Mech Mlg |
| FSC / FSG | 1620 / 16 — Aircraft Landing Gear Components |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| General Characteristics Item Description | 304 STEEL PER MIL-S-5059,COND ANNEALED; 0.500 IN. O/A THK; 0.660 IN. NOM W; 1.250 IN. O/A LG IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 74A420616-2004 | Safran Landing Systems Canada Inc. (CAN) |
| 74A420616-2004 | The Boeing Company Div Services (USA) |
| 74A420616-2004 PRIMARY | The Boeing Company Div Defense (USA) |
| 74A420616-2004 | Nassau Tool Works, Inc (USA) |
| Reference | Meaning |
|---|---|
| 10153732 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 74A420616-2004 | C/1 Advisory reference — outside the item-of-supply concept Israel Aerospace Industries Ltd.shl-Aero Assemblies Division |
| 74A420616-2004 | 5/9 Secondary reference Israel Aerospace Industries Ltd. Shl - Aero Assemblies Division |
| 74A420616-2004 | 5/9 Secondary reference Mccay Tool and Engineering Company Dba Mccay Tool & Engineering Co |
| 74A420616-2004 | 5/9 Secondary reference Container Machinery, Inc. Dba Versatile Machining |
| 74A420616-2004 | 5/2 Secondary reference U.S. Government activity |
NSN 1620-01-140-3385 is a Arm,valve,uplock Mech Mlg, manufactured by The Boeing Company Div Defense, classified under FSC 1620, Aircraft Landing Gear Components. Status: active.
NSN 1620-01-140-3385 has 4 manufacturer part numbers on file: 74A420616-2004 (Safran Landing Systems Canada Inc.), 74A420616-2004 (The Boeing Company Div Services), 74A420616-2004 (The Boeing Company Div Defense), 74A420616-2004 (Nassau Tool Works, Inc).
Key specifications for 74A420616-2004: General Characteristics Item Description: 304 STEEL PER MIL-S-5059,COND ANNEALED; 0.500 IN. O/A THK; 0.660 IN. NOM W; 1.250 IN. O/A LG IN. 1 specification is 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 1620-01-140-3385 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.