The Pin Assy,uplock Roller,mlg, cataloged under National Stock Number 1620-01-014-7326, 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 Commercial. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1620-01-014-7326 |
| Primary Part Number | 66-3921-3 |
| Item Name | Pin Assy,uplock Roller,mlg |
| FSC / FSG | 1620 / 16 — Aircraft Landing Gear Components |
| Manufacturer | The Boeing Company Div Commercial |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,CHROMIUM PLATE,3.900 IN. O/A LG,2.187 IN. OD,1 END 1.530 IN. DIA BORE 0.840 IN. DP,2ND END 1.320 IN. DIA BORE 2.620 IN. DP,MACHINED SURFACES 63.0 AND 125.0 MICROINCH FINISH,COMPONENTS LUBRICATOR 1,SHAFT1 IN |
| Reference Data and Literature | T.O. 4S1-102-3 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 66-3921-3 | Alatus Aerosystems Dba F.k.a., Triumph Structures-Los Angeles (USA) |
| 66-3921-3 | Circor Aerospace, Inc. Div Circor (USA) |
| 66-3921-3 PRIMARY | The Boeing Company Div Commercial (USA) |
| 66-3921-3 | Hydromach Inc Dba Hydromach Inc (USA) |
| Reference | Meaning |
|---|---|
| 66-3921-3 | 5/9 Secondary reference U.S. Government activity |
NSN 1620-01-014-7326 is a Pin Assy,uplock Roller,mlg, manufactured by The Boeing Company Div Commercial, classified under FSC 1620, Aircraft Landing Gear Components. Status: active.
NSN 1620-01-014-7326 has 4 manufacturer part numbers on file: 66-3921-3 (Alatus Aerosystems Dba F.k.a., Triumph Structures-Los Angeles), 66-3921-3 (Circor Aerospace, Inc. Div Circor), 66-3921-3 (The Boeing Company Div Commercial), 66-3921-3 (Hydromach Inc Dba Hydromach Inc).
Key specifications for 66-3921-3: General Characteristics Item Description: STEEL,CHROMIUM PLATE,3.900 IN. O/A LG,2.187 IN. OD,1 END 1.530 IN. DIA BORE 0.840 IN. DP,2ND END 1.320 IN. DIA BORE 2.620 IN. DP,MACHINED SURFACES 63.0 AND 125.0 MICROINCH FINISH,COMPONENTS LUBRICATOR 1,SHAFT1 IN; Reference Data and Literature: T.O. 4S1-102-3; End Item Identification: E-3A ACFT A. 2 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 1620-01-014-7326 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.