The Valve,safety Relief, cataloged under National Stock Number 4820-00-920-7459, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 7 specifications, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-920-7459 |
| Primary Part Number | 9H5746 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Connection Style | GROOVED (TUBE) FIRST END |
| Connection Type | UNTHREADED EXTERNAL TUBE FIRST END |
| Style Designator | STRAIGHT THRU |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST END IN |
| Material | STEEL OVERALL |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| 9H5746 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| IPD9H5746 | 5/9 Secondary reference Industrial Parts Depot, Llc Dba Ipd |
| 1632838 | 5/9 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
| IPD9H4546 | 5/9 Secondary reference Industrial Parts Depot, Llc Dba Ipd |
| 9H5746 | 5/9 Secondary reference Holt Bros |
NSN 4820-00-920-7459 is a Valve,safety Relief, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-920-7459 has 1 manufacturer part number on file: 9H5746 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 9H5746: Flow Control Device: DISK; Connection Style: GROOVED (TUBE) FIRST END; Connection Type: UNTHREADED EXTERNAL TUBE FIRST END; Style Designator: STRAIGHT THRU. 7 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.