The Sleeve,sensor,tail Landing Gear, cataloged under National Stock Number 1620-01-178-3071, is classified within Federal Supply Class 1620 (Aircraft Landing Gear Components) of the Aircraft Components and Accessories group. The manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1620-01-178-3071 |
| Primary Part Number | 2012A261 |
| Item Name | Sleeve,sensor,tail Landing Gear |
| FSC / FSG | 1620 / 16 — Aircraft Landing Gear Components |
| Manufacturer | Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| Status | ACTIVE |
| General Characteristics Item Description | CRES,17-4PH,AMS5643,COND H1025; 1.490 IN. DIA FLANGE; 0.380 IN. FLANGE THK; 1.220 IN. NECK DIA; 0.800 IN. SLEEVE LG O/A; 1.000-6 UNJ-3B THD ON NECK END; 0.695 IN. ID AT FLANGE END; FLATS ON OPPOSITE SIDES OF NECK OD; 1.120 IN. ACROSS FLATS; 0.047 IN. DIA LOCKWIRE HOLES THRU BOTH WALLS OF FLATS; PASSIVATED PER QQ-P-35B 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 |
|---|---|
| 2012A261 PRIMARY | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| Reference | Meaning |
|---|---|
| 2012A261 | 3/9 Design control — primary reference Goodrich Corporation Div Advanced Structures Landing Systems |
| 2012A261 | 7/2 Vendor item drawing reference Goodrich Corporation |
| 2012A261 | 5/9 Secondary reference Cm Manufacturing Inc Dba Cm Manufacturing Inc |
NSN 1620-01-178-3071 is a Sleeve,sensor,tail Landing Gear, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 1620, Aircraft Landing Gear Components. Status: active.
NSN 1620-01-178-3071 has 1 manufacturer part number on file: 2012A261 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).
Key specifications for 2012A261: General Characteristics Item Description: CRES,17-4PH,AMS5643,COND H1025; 1.490 IN. DIA FLANGE; 0.380 IN. FLANGE THK; 1.220 IN. NECK DIA; 0.800 IN. SLEEVE LG O/A; 1.000-6 UNJ-3B THD ON NECK END; 0.695 IN. ID AT FLANGE END; FLATS ON OPPOSITE SIDES OF NECK OD; 1.120 IN. ACROSS FLATS; 0.047 IN. DIA LOCKWIRE HOLES THRU BOTH WALLS OF FLATS; PASSIVATED PER QQ-P-35B 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 1620-01-178-3071 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.