The Collar,boiler Door, cataloged under National Stock Number 4520-01-372-1646, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Aesys Technologies, L.l.c. Dba Jackson & Church Hvac Global Div York Shipley Global. 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. 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 | 4520-01-372-1646 |
| Primary Part Number | 94617 |
| Item Name | Collar,boiler Door |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Aesys Technologies, L.l.c. Dba Jackson & Church Hvac Global Div York Shipley Global |
| Status | ACTIVE |
| General Characteristics Item Description | ROUND SHAPE; PART OF BOILER DOOR |
| 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 |
|---|---|
| 94617 PRIMARY | Aesys Technologies, L.l.c. Dba Jackson & Church Hvac Global Div York Shipley Global (USA) |
NSN 4520-01-372-1646 is a Collar,boiler Door, manufactured by Aesys Technologies, L.l.c. Dba Jackson & Church Hvac Global Div York Shipley Global, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-372-1646 has 1 manufacturer part number on file: 94617 (Aesys Technologies, L.l.c. Dba Jackson & Church Hvac Global Div York Shipley Global).
1 possible match (shared part number, not a government interchangeability claim): 4240-01-481-5533. Verify interchangeability with system specifications before substitution.
Key specifications for 94617: General Characteristics Item Description: ROUND SHAPE; PART OF BOILER DOOR. 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.