The Shield,sonar Transducer Head, cataloged under National Stock Number 5845-01-274-4117, is classified within Federal Supply Class 5845 (Underwater Sound Equipment) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is L3harris Technologies, Inc.. Government technical data includes 7 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5845-01-274-4117 |
| Primary Part Number | 101551-1 |
| Item Name | Shield,sonar Transducer Head |
| FSC / FSG | 5845 / 58 — Underwater Sound Equipment |
| Manufacturer | L3harris Technologies, Inc. |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 3 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY |
| Unthreaded Mounting Hole Diameter | 0.344 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Style Designator | IRREGULAR |
| Material Document and Classification | QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE |
| Distance Between Mounting Facility Centers | 12.000 INCHES NOMINAL SINGLE MOUNTING FACILITY FIRST CENTER GROUP IN |
| Distance Between Mounting Facility Centers | 23.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SECOND CENTER GROUP IN |
| Material | STEEL |
| 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 |
|---|---|
| 101551-1 PRIMARY | L3harris Technologies, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 101551-1 | 5/9 Secondary reference U.S. Government activity |
NSN 5845-01-274-4117 is a Shield,sonar Transducer Head, manufactured by L3harris Technologies, Inc., classified under FSC 5845, Underwater Sound Equipment. Status: active.
NSN 5845-01-274-4117 has 1 manufacturer part number on file: 101551-1 (L3harris Technologies, Inc.).
Key specifications for 101551-1: Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY; Overall Height: 0.250 INCHES NOMINAL IN; Unthreaded Mounting Hole Diameter: 0.344 INCHES NOMINAL SINGLE MOUNTING FACILITY IN; Style Designator: IRREGULAR. 7 specifications are 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.