The Seal Assembly,cover Upper,steeri, cataloged under National Stock Number 1620-01-107-6820, 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 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1620-01-107-6820 |
| Primary Part Number | 74A450688-1001 |
| Item Name | Seal Assembly,cover Upper,steeri |
| FSC / FSG | 1620 / 16 — Aircraft Landing Gear Components |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Material | PLASTIC |
| 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 |
|---|---|
| 74A450688-1001 | Goodrich Corporation (USA) |
| 74A450688-1001 | Hdi Landing Gear Usa Inc (USA) |
| 74A450688-1001 | Safran Landing Systems Canada Inc. (CAN) |
| 74A450688-1001 PRIMARY | The Boeing Company Div Defense (USA) |
| 74A450688-1001 | Heroux-Devtek Inc (CAN) |
| Reference | Meaning |
|---|---|
| 74A450688-1001 | 5/9 Secondary reference Goodrich Corporation Div Advanced Structures Landing Systems |
| 74A450688-1001 | 5/9 Secondary reference All Tools, Inc. Dba E2 Precision Products |
| 74A450688-1001 | C/1 Advisory reference — outside the item-of-supply concept Israel Aerospace Industries Ltd.shl-Aero Assemblies Division |
| 74A450688-1001 | 5/9 Secondary reference Circor Aerospace, Inc. Dba Circor Aerospace Machining Center |
| 10153671 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 74A450688-1001 | 5/9 Secondary reference Goodrich Corp Dba Goodrich Corp |
| 74A450688-1001 | 5/9 Secondary reference Israel Aerospace Industries Ltd. Shl - Aero Assemblies Division |
| 1958C487 | 5/9 Secondary reference Goodrich Corporation Div Advanced Structures Landing Systems |
NSN 1620-01-107-6820 is a Seal Assembly,cover Upper,steeri, manufactured by The Boeing Company Div Defense, classified under FSC 1620, Aircraft Landing Gear Components. Status: active.
NSN 1620-01-107-6820 has 5 manufacturer part numbers on file: 74A450688-1001 (Goodrich Corporation), 74A450688-1001 (Hdi Landing Gear Usa Inc), 74A450688-1001 (Safran Landing Systems Canada Inc.), 74A450688-1001 (The Boeing Company Div Defense), 74A450688-1001 (Heroux-Devtek Inc).
Key specifications for 74A450688-1001: Special Features: 6.840 IN. ID; 0.206 IN. THK; FURNISHED WITH SEAL AND INSERT IN; Material: PLASTIC. 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 1620-01-107-6820 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.