The Positioner,piston,landing Gear, cataloged under National Stock Number 1620-00-326-6435, is classified within Federal Supply Class 1620 (Aircraft Landing Gear Components) of the Aircraft Components and Accessories group. The manufacturer of record is Goodrich Corporation. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1620-00-326-6435 |
| Primary Part Number | 538020 |
| Item Name | Positioner,piston,landing Gear |
| FSC / FSG | 1620 / 16 — Aircraft Landing Gear Components |
| Manufacturer | Goodrich Corporation |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY QQ-A-282 COMP 75S COND T6,ANODIZED FINISH,4.620 IN. MIN TO 4.628 IN. MAX O/A LG,5.498 IN. MIN TO 5.501 IN. MAX OD,4.750 IN. MIN TO 4.755 IN. MAX DIA BORE THRU,COUNTER BORE 5.223 IN. MIN TO 5.225 IN. MAX DIA 0.655 IN. MIN TO 0.660 IN. MAX DP,1 EXTERNAL GROOVE 1.000 IN. W 0.186 IN. MIN TO 0.188 IN. MAX DP,1 EXTERNAL GROOVE 0.540 IN. MIN TO 0.545 IN. MAX W 0.237 IN. DP,MACHINED SURFACES 16.0 32.0 63.0 AND 125.0 MICROINCH FINISH,DIA CONCENTRIC WITHIN 0.003 TIR 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 |
|---|---|
| 538020 PRIMARY | Goodrich Corporation (USA) |
| Reference | Meaning |
|---|---|
| 538020 | 3/9 Design control — primary reference Goodrich Corp Dba Goodrich Corp |
NSN 1620-00-326-6435 is a Positioner,piston,landing Gear, manufactured by Goodrich Corporation, classified under FSC 1620, Aircraft Landing Gear Components. Status: active.
NSN 1620-00-326-6435 has 1 manufacturer part number on file: 538020 (Goodrich Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-306-5997. Verify interchangeability with system specifications before substitution.
Key specifications for 538020: General Characteristics Item Description: ALUMINUM ALLOY QQ-A-282 COMP 75S COND T6,ANODIZED FINISH,4.620 IN. MIN TO 4.628 IN. MAX O/A LG,5.498 IN. MIN TO 5.501 IN. MAX OD,4.750 IN. MIN TO 4.755 IN. MAX DIA BORE THRU,COUNTER BORE 5.223 IN. MIN TO 5.225 IN. MAX DIA 0.655 IN. MIN TO 0.660 IN. MAX DP,1 EXTERNAL GROOVE 1.000 IN. W 0.186 IN. MIN TO 0.188 IN. MAX DP,1 EXTERNAL GROOVE 0.540 IN. MIN TO 0.545 IN. MAX W 0.237 IN. DP,MACHINED SURFACES 16.0 32.0 63.0 AND 125.0 MICROINCH FINISH,DIA CONCENTRIC WITHIN 0.003 TIR 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 1620-00-326-6435 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.