The Valve,gate, cataloged under National Stock Number 4820-01-482-9353, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Portland Valve Llc. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-482-9353 |
| Primary Part Number | 5184176XX MOD-1 |
| Item Name | Valve,gate |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Portland Valve Llc |
| Status | ACTIVE |
| Inlet Relationship with Outlet | NOT IDENTICAL |
| Nominal Pipe Size Accommodated | 1.262 INCHES AND 1.100 INCHES IN |
| Stem Type | NONRISING |
| Connection Type | BRAZING, PIPE AND THREADED EXTERNAL TUBE |
| Valve Size | 1.250 INCHES IN |
| Bonnet Type | INSIDE SCREW |
| Nominal Thread Size | 1.500 INCHES IN |
| Bonnet Attachment Method | UNION |
| Thread Class | 2A A |
| Pressure Class | ERR-060 |
| Material | COPPER ALLOY 922 DISK |
| Material | STEEL CORROSION RESISTING SEAT |
| Material | COPPER ALLOY 922 BODY |
| Material | COPPER ALLOY 922 STEM |
| Thread Series Designator | UNEF |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| 5184176XX MOD-1 PRIMARY | Portland Valve Llc (USA) |
| 5184176(MOD)ASSY 518476XXX MOD-1 | Portland Valve Llc (USA) |
| Reference | Meaning |
|---|---|
| 5184176XXX MOD-1 | 5/9 Secondary reference Portland Valve Llc |
NSN 4820-01-482-9353 is a Valve,gate, manufactured by Portland Valve Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-482-9353 has 2 manufacturer part numbers on file: 5184176XX MOD-1 (Portland Valve Llc), 5184176(MOD)ASSY 518476XXX MOD-1 (Portland Valve Llc).
Key specifications for 5184176XX MOD-1: Inlet Relationship with Outlet: NOT IDENTICAL; Nominal Pipe Size Accommodated: 1.262 INCHES AND 1.100 INCHES IN; Stem Type: NONRISING; Connection Type: BRAZING, PIPE AND THREADED EXTERNAL TUBE. 16 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.