The Valve,metering,land, cataloged under National Stock Number 1620-00-008-3989, is classified within Federal Supply Class 1620 (Aircraft Landing Gear Components) of the Aircraft Components and Accessories group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1620-00-008-3989 |
| Primary Part Number | 14-40607-1 |
| Item Name | Valve,metering,land |
| FSC / FSG | 1620 / 16 — Aircraft Landing Gear Components |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| Status | ACTIVE |
| FSC Application Data | LANDING GEAR,RETRACTABLE |
| General Characteristics Item Description | STEEL AMS6381 NO. 4140,0.630 IN. O/A LG,2.955 IN. MIN TO 2.965 IN.MAX O/A DIA,2.584 IN. MIN TO 2.589 IN. MAX BORE DIA,4 METERING HOLES0.124 IN. MIN TO 0.127 IN. MAX DIA,MACHINED SURFACES 125 MICROINCH FINISHHEAT TREAT 180000 TO 200000 PSI 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 | X |
| Part Number | Manufacturer |
|---|---|
| 14-40607-1 | Northrop Grumman Systems Corporation (USA) |
| 14-40607-1 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| Reference | Meaning |
|---|---|
| 14-40607-1 | 5/9 Secondary reference Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
NSN 1620-00-008-3989 is a Valve,metering,land, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems, classified under FSC 1620, Aircraft Landing Gear Components. Status: active.
NSN 1620-00-008-3989 has 2 manufacturer part numbers on file: 14-40607-1 (Northrop Grumman Systems Corporation), 14-40607-1 (Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems).
Key specifications for 14-40607-1: FSC Application Data: LANDING GEAR,RETRACTABLE; General Characteristics Item Description: STEEL AMS6381 NO. 4140,0.630 IN. O/A LG,2.955 IN. MIN TO 2.965 IN.MAX O/A DIA,2.584 IN. MIN TO 2.589 IN. MAX BORE DIA,4 METERING HOLES0.124 IN. MIN TO 0.127 IN. MAX DIA,MACHINED SURFACES 125 MICROINCH FINISHHEAT TREAT 180000 TO 200000 PSI IN. 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 1620-00-008-3989 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.