The Parts Kit,safety Relief Valve, cataloged under National Stock Number 4820-00-678-2841, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Carrier Corp. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-678-2841 |
| Primary Part Number | 6L45-123 |
| Item Name | Parts Kit,safety Relief Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Carrier Corp |
| Status | ACTIVE |
| Component Quantity | 18 |
| Supply Items and Quantities | BODY 1;POPPET 1;SPRING 2;PLATE 1;GASKET 1;BALL BEARING 2;BALL SPRING 2;BOLT 2;WASHER 2;SET SCREW 1;COTTER PIN 2;SPRING CLIP 1 |
| 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 |
|---|---|
| 6L45-123 PRIMARY | Carrier Corp (USA) |
| 5H120-317 | Carrier Corp (USA) |
| Reference | Meaning |
|---|---|
| 4820PL1342503 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 6L45-1382 | C/1 Advisory reference — outside the item-of-supply concept Carrier Corp |
| N8120-5PC21L | 5/9 Secondary reference Carrier Corp |
NSN 4820-00-678-2841 is a Parts Kit,safety Relief Valve, manufactured by Carrier Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-678-2841 has 2 manufacturer part numbers on file: 6L45-123 (Carrier Corp), 5H120-317 (Carrier Corp).
Key specifications for 6L45-123: Component Quantity: 18; Supply Items and Quantities: BODY 1;POPPET 1;SPRING 2;PLATE 1;GASKET 1;BALL BEARING 2;BALL SPRING 2;BOLT 2;WASHER 2;SET SCREW 1;COTTER PIN 2;SPRING CLIP 1. 2 specifications are 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.