The Block Positioning, cataloged under National Stock Number 5845-01-181-9916, is classified within Federal Supply Class 5845 (Underwater Sound Equipment) of the Communication, Detection, and Coherent Radiation Equipment group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5845-01-181-9916 |
| Item Name | Block Positioning |
| FSC / FSG | 5845 / 58 — Underwater Sound Equipment |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 810-408 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5845-01-181-9916 is a Block Positioning, classified under FSC 5845, Underwater Sound Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6150-01-631-8807. Verify interchangeability with system specifications before substitution.
Key specifications for 5845-01-181-9916: Special Features: T.O. 31S9-4-50-7; End Item Identification: C141B. 0 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.