The Valve,gate, cataloged under National Stock Number 4820-01-314-2170, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-314-2170 |
| Primary Part Number | 1146-009U-114 |
| Item Name | Valve,gate |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc |
| Status | ACTIVE |
| Inlet Relationship with Outlet | IDENTICAL |
| Nominal Pipe Size Accommodated | 1.250 INCHES IN |
| Maximum Operating Temp and Media for Which Designed | 425.0 FAHRENHEIT STEAM AND 150.0 FAHRENHEIT WATER-OIL-GAS DEGF |
| Operating Pressure and Type | 200.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 400.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS |
| Stem Type | NONRISING |
| Connection Type | BRAZING, PIPE |
| Material Document and Classification | QQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE DISK |
| Material Document and Classification | ASTM-B61 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | ASTM-B164 ASSN STD SINGLE MATERIAL RESPONSE STEM |
| Material Document and Classification | ASTM-B164 ASSN STD SINGLE MATERIAL RESPONSE SEAT |
| Valve Size | 1.250 INCHES IN |
| Bonnet Type | INSIDE SCREW |
| Bonnet Attachment Method | THREADED |
| Material | COPPER ALLOY BODY |
| Material | NICKEL ALLOY STEM |
| Material | NICKEL ALLOY SEAT |
| Material | NICKEL ALLOY DISK |
| 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 |
|---|---|
| 1146-009U-114 PRIMARY | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| 1146M | D/9 Drawing number reference only Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc |
| 1146M1 1-4IN | 5/9 Secondary reference Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc |
NSN 4820-01-314-2170 is a Valve,gate, manufactured by Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-314-2170 has 1 manufacturer part number on file: 1146-009U-114 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-539-0925. Verify interchangeability with system specifications before substitution.
Key specifications for 1146-009U-114: Inlet Relationship with Outlet: IDENTICAL; Nominal Pipe Size Accommodated: 1.250 INCHES IN; Maximum Operating Temp and Media for Which Designed: 425.0 FAHRENHEIT STEAM AND 150.0 FAHRENHEIT WATER-OIL-GAS DEGF; Operating Pressure and Type: 200.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 400.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS. 18 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.