The Valve,safety Relief, cataloged under National Stock Number 4820-01-278-6723, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Sun Hydraulics Corporation. The record lists 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Ametek Airtechnology Group Limited (CAGE K7776); Sun Hydraulics Corporation (CAGE 54035); Houlder Ltd (CAGE U5365); Sun Hydraulics Ltd (CAGE U4474) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-278-6723 |
| Primary Part Number | NSAB KXV BT |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Sun Hydraulics Corporation |
| 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 |
|---|---|
| A4/1153/675.3 | Ametek Airtechnology Group Limited (GBR) |
| NSAB KXV BT PRIMARY | Sun Hydraulics Corporation (USA) |
| A4/1153/1418 | Ametek Airtechnology Group Limited (GBR) |
| A/049/033/54/31 | Houlder Ltd (GBR) |
| 1153/675.3 | Ametek Airtechnology Group Limited (GBR) |
| 1153/1418 | Ametek Airtechnology Group Limited (GBR) |
| A/049/033/54 ITEM 31 | Houlder Ltd (GBR) |
| NSAB KXV BT | Sun Hydraulics Ltd (GBR) |
| Reference | Meaning |
|---|---|
| M2340-821010 | 6/9 Informative reference only Forsvarets Materielverk |
NSN 4820-01-278-6723 is a Valve,safety Relief, manufactured by Sun Hydraulics Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-278-6723 has 8 manufacturer part numbers on file: A4/1153/675.3 (Ametek Airtechnology Group Limited), NSAB KXV BT (Sun Hydraulics Corporation), A4/1153/1418 (Ametek Airtechnology Group Limited), A/049/033/54/31 (Houlder Ltd), 1153/675.3 (Ametek Airtechnology Group Limited) and 3 more.
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.