The Buoyancy Box,marine, cataloged under National Stock Number 2090-01-561-6329, is classified within Federal Supply Class 2090 (Miscellaneous Ship and Marine Equipment) of the Ship and Marine Equipment group. The manufacturer of record is Stidd Systems, Inc. Dba Stidd Systems Inc. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2090-01-561-6329 |
| Primary Part Number | 4527-1-170 |
| Item Name | Buoyancy Box,marine |
| FSC / FSG | 2090 / 20 — Miscellaneous Ship and Marine Equipment |
| Manufacturer | Stidd Systems, Inc. Dba Stidd Systems Inc |
| Status | ACTIVE |
| Color | GRAY/GREY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4527-1-170 PRIMARY | Stidd Systems, Inc. Dba Stidd Systems Inc (USA) |
NSN 2090-01-561-6329 is a Buoyancy Box,marine, manufactured by Stidd Systems, Inc. Dba Stidd Systems Inc, classified under FSC 2090, Miscellaneous Ship and Marine Equipment. Status: active.
NSN 2090-01-561-6329 has 1 manufacturer part number on file: 4527-1-170 (Stidd Systems, Inc. Dba Stidd Systems Inc).
Key specifications for 4527-1-170: Color: GRAY/GREY; Special Features: 3 LAYERS;PROVIDES ADDITIONAL BUOYANCY FOR DPD USE IN FRESH WATER; Part Name Assigned by Controlling Agency: FRESH WATER WEDGE; End Item Identification: DIVER PROPULSION DEVICE 4500-100. 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 2090-01-561-6329 has DEMIL Code B. 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.