The Valve,safety Relief, cataloged under National Stock Number 4820-01-706-5687, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Circor Aerospace, Inc. Div Circor. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Valve,safety Relief |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Circor Aerospace, Inc. Div Circor (CAGE 50601) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-706-5687 |
| Primary Part Number | D524T1P-4D-29 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Circor Aerospace, Inc. Div Circor |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| D524T1P-4D-29 PRIMARY | Circor Aerospace, Inc. Div Circor (USA) |
| Reference | Meaning |
|---|---|
| 701296-1 | 7/2 Vendor item drawing reference Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc |
| 701296 | D/9 Drawing number reference only Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc |
NSN 4820-01-706-5687 is a Valve,safety Relief, manufactured by Circor Aerospace, Inc. Div Circor, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-706-5687 has 1 manufacturer part number on file: D524T1P-4D-29 (Circor Aerospace, Inc. Div Circor).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 4820-01-706-5687 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.