The Aligner,boresight, cataloged under National Stock Number 5220-00-073-5566, is classified within Federal Supply Class 5220 (Inspection Gages and Precision Layout Tools) of the Measuring Tools group. The manufacturer of record is Regal Machine & Engineering Inc. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Aligner,boresight |
| FSC / FSG | 5220 — Inspection Gages and Precision Layout Tools (FSG 52) |
| Manufacturers | Northrop Grumman Systems Corporation (CAGE 79RG9); Regal Machine & Engineering Inc (CAGE 66345) |
| Parameter | Value |
|---|---|
| NSN | 5220-00-073-5566 |
| Primary Part Number | 123GT10139 |
| Item Name | Aligner,boresight |
| FSC / FSG | 5220 / 52 — Inspection Gages and Precision Layout Tools |
| Manufacturer | Regal Machine & Engineering Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 123G710139 | Northrop Grumman Systems Corporation (USA) |
| 123GT10139 PRIMARY | Regal Machine & Engineering Inc (USA) |
| 123GT10139 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 123G710139 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| 123GT10139 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 5220-00-073-5566 is a Aligner,boresight, manufactured by Regal Machine & Engineering Inc, classified under FSC 5220, Inspection Gages and Precision Layout Tools. Status: active.
NSN 5220-00-073-5566 has 3 manufacturer part numbers on file: 123G710139 (Northrop Grumman Systems Corporation), 123GT10139 (Regal Machine & Engineering Inc), 123GT10139 (Northrop Grumman Systems Corporation).
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 5220-00-073-5566 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.