The Sleeve, cataloged under National Stock Number 4520-00-359-9598, 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 Ametek Inc Heat Transfer Div. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Sleeve |
| FSC / FSG | 4520 — Space and Water Heating Equipment (FSG 45) |
| Manufacturers | Ametek Inc Heat Transfer Div (CAGE 60883); Aesys Technologies, L.l.c. Dba Jackson & Church Hvac Global Div York Shipley Global (CAGE 79466); L & L Boiler Maintenance Inc (CAGE 0ATF2) |
| Parameter | Value |
|---|---|
| NSN | 4520-00-359-9598 |
| Primary Part Number | 1463-4-25 |
| Item Name | Sleeve |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Ametek Inc Heat Transfer Div |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 1463-4-25 PRIMARY | Ametek Inc Heat Transfer Div (USA) |
| 4-25 PRIMARY | Aesys Technologies, L.l.c. Dba Jackson & Church Hvac Global Div York Shipley Global (USA) |
| 238704026-8 1-2 | L & L Boiler Maintenance Inc (USA) |
| Reference | Meaning |
|---|---|
| 238704026-8 1-2 | 5/9 Secondary reference D & J Parts Inc |
| 6-1-2363-20-388A | 5/9 Secondary reference Eidal International Corporation |
NSN 4520-00-359-9598 is a Sleeve, manufactured by Ametek Inc Heat Transfer Div, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-00-359-9598 has 3 manufacturer part numbers on file: 1463-4-25 (Ametek Inc Heat Transfer Div), 4-25 (Aesys Technologies, L.l.c. Dba Jackson & Church Hvac Global Div York Shipley Global), 238704026-8 1-2 (L & L Boiler Maintenance Inc).
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.