The Refrigeration Unit,mechanical, cataloged under National Stock Number 4110-01-677-1755, is classified within Federal Supply Class 4110 (Refrigeration Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Naval Sea Systems Command. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Refrigeration Unit,mechanical |
| FSC / FSG | 4110 — Refrigeration Equipment (FSG 41) |
| Manufacturers | Naval Sea Systems Command (CAGE 53711); Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil (CAGE 38450) |
| Parameter | Value |
|---|---|
| NSN | 4110-01-677-1755 |
| Primary Part Number | 8684238 REVB ITEM F1 |
| Item Name | Refrigeration Unit,mechanical |
| FSC / FSG | 4110 / 41 — Refrigeration Equipment |
| Manufacturer | Naval Sea Systems Command |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 8684238 REVB ITEM F1 PRIMARY | Naval Sea Systems Command (USA) |
| 1624-1000 PRIMARY | Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil (USA) |
| Reference | Meaning |
|---|---|
| 503-8684238 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4110-01-677-1755 is a Refrigeration Unit,mechanical, manufactured by Naval Sea Systems Command, classified under FSC 4110, Refrigeration Equipment. Status: active.
NSN 4110-01-677-1755 has 2 manufacturer part numbers on file: 8684238 REVB ITEM F1 (Naval Sea Systems Command), 1624-1000 (Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil).
2 possible matches (shared part number, not a government interchangeability claim): 5330-01-677-2549, 6695-01-732-4524. Verify interchangeability with system specifications before substitution.
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.