The Ball Tracker, cataloged under National Stock Number 1285-01-009-0697, is classified within Federal Supply Class 1285 (Fire Control Radar Equipment, Except Airborne) of the Fire Control Equipment group. The manufacturer of record is Orbit International Corp. Div Orbit Instrument. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1285-01-009-0697 |
| Primary Part Number | 55778 |
| Item Name | Ball Tracker |
| FSC / FSG | 1285 / 12 — Fire Control Radar Equipment, Except Airborne |
| Manufacturer | Orbit International Corp. Div Orbit Instrument |
| Status | ACTIVE |
| General Characteristics Item Description | HOUSING MATL ALUMINUM ALLOY 356-T6 CASTING PER QQ-A-601 CLASS 3,CHEMICAL FILM TREATMENT PER MIL-C-5541,PILOT RING ALUMINUM,BLACK ANODIZE PER MIL-A-8625,MTG PLATE ALUMINUM,BLACK ANODIZE PER MIL-A-8625,BALL BLACK PHENOLIC PER MIL-M-14,TYPE 12,PRINTED WIRING BOARDS GLASS EPOXY PER MIL-P-13949,TYPE FL-GF,5.000 IN. PORM 0.010 IN. LG,5.000 IN. PORM 0.010 IN. W,3.937 IN. PORM 0.062 IN. H,3.000 IN. DIA OF BALL,5.0 VDC PORM 2 PCT INPUT POWER,4.0 OZ BALL TRACKING FORCE,0.0 TO 120.0 RPM OPERATING BALL SPEED,0 TO 50 DEG C OPERATING TEMP,ROTATION OF BALL IN THE X OR Y DIRECTION PRODUCES A SET OF FOUR ELECTRICAL PULSES VDC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 55778 PRIMARY | Orbit International Corp. Div Orbit Instrument (USA) |
| 560908-000 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| Reference | Meaning |
|---|---|
| 3162573 | 7/2 Vendor item drawing reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 1285-01-009-0697 is a Ball Tracker, manufactured by Orbit International Corp. Div Orbit Instrument, classified under FSC 1285, Fire Control Radar Equipment, Except Airborne. Status: active.
NSN 1285-01-009-0697 has 2 manufacturer part numbers on file: 55778 (Orbit International Corp. Div Orbit Instrument), 560908-000 (Lockheed Martin Corporation Div Rms - Mitchel Field).
Key specifications for 55778: General Characteristics Item Description: HOUSING MATL ALUMINUM ALLOY 356-T6 CASTING PER QQ-A-601 CLASS 3,CHEMICAL FILM TREATMENT PER MIL-C-5541,PILOT RING ALUMINUM,BLACK ANODIZE PER MIL-A-8625,MTG PLATE ALUMINUM,BLACK ANODIZE PER MIL-A-8625,BALL BLACK PHENOLIC PER MIL-M-14,TYPE 12,PRINTED WIRING BOARDS GLASS EPOXY PER MIL-P-13949,TYPE FL-GF,5.000 IN. PORM 0.010 IN. LG,5.000 IN. PORM 0.010 IN. W,3.937 IN. PORM 0.062 IN. H,3.000 IN. DIA OF BALL,5.0 VDC PORM 2 PCT INPUT POWER,4.0 OZ BALL TRACKING FORCE,0.0 TO 120.0 RPM OPERATING BALL SPEED,0 TO 50 DEG C OPERATING TEMP,ROTATION OF BALL IN THE X OR Y DIRECTION PRODUCES A SET OF FOUR ELECTRICAL PULSES VDC. 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 1285-01-009-0697 has DEMIL Code D. 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.