The Alignment Set,fire Control Equip, cataloged under National Stock Number 4931-01-169-2182, is classified within Federal Supply Class 4931 (Fire Control Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is The Boeing Company Div Legacy Am&m. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4931-01-169-2182 |
| Primary Part Number | 51A40900-010 |
| Item Name | Alignment Set,fire Control Equip |
| FSC / FSG | 4931 / 49 — Fire Control Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | The Boeing Company Div Legacy Am&m |
| Status | ACTIVE |
| Functional Description | USED TO ALIGN PITOT-STATIC/ANGLE OF ATTACK SENSOR PROBE MOUNTS TO THE CENTERLINE OF THE ACFT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 51A40900-010 PRIMARY | The Boeing Company Div Legacy Am&m (USA) |
| Reference | Meaning |
|---|---|
| R-TBD-720 | 5/9 Secondary reference The Boeing Company Div Legacy Am&m |
| 51A40000-001 | 5/9 Secondary reference The Boeing Company Div Legacy Am&m |
NSN 4931-01-169-2182 is a Alignment Set,fire Control Equip, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 4931, Fire Control Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4931-01-169-2182 has 1 manufacturer part number on file: 51A40900-010 (The Boeing Company Div Legacy Am&m).
Key specifications for 51A40900-010: Special Features: KIT C/O UPPER LEFT-HAND ADAPTER 1,LOWER LEFT-HAND ADAPTER 1,UPPER RIGHT-HAND ADAPTER 1,LOWER RIGHT-HAND ADAPTER 1; Functional Description: USED TO ALIGN PITOT-STATIC/ANGLE OF ATTACK SENSOR PROBE MOUNTS TO THE CENTERLINE OF THE ACFT; Part Name Assigned by Controlling Agency: ALIGNMENT KET,AIR DATA SENSOR MOUNTS; End Item Identification: B-1B ACFT. 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.
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.