The Valve,gate, cataloged under National Stock Number 4820-01-021-3809, 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 21 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-021-3809 |
| Primary Part Number | 1186-700-34 |
| 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 |
| Maximum Operating Temp and Media for Which Designed | 550.0 FAHRENHEIT STEAM DEGF |
| Operating Pressure and Type | 300.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 600.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS |
| Stem Type | RISING |
| Connection Type | THREADED INTERNAL PIPE |
| Material Document and Classification | ASTM B-58A ALLOY C97600 ASSN STD SINGLE MATERIAL RESPONSE DISK A |
| Material Document and Classification | ASTM B-61 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | ASTM B-371 ALLOY C69400 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B-99 ALLOY C65100 H04 ASSN STD SINGLE MATERIAL RESPONSE STEM |
| Material Document and Classification | ASTM ST1056 ASSN STD SINGLE MATERIAL RESPONSE SEAT |
| Valve Size | 0.750 INCHES IN |
| Features Provided | BONNET PACKING |
| Bonnet Type | INSIDE SCREW |
| Nominal Thread Size | 0.750 INCHES IN |
| Bonnet Attachment Method | UNION |
| Pressure Class | ERR-060 |
| Material | STEEL SEAT |
| Material | COPPER ALLOY 922 BODY |
| Material | COPPER ALLOY DISK |
| Material | COPPER ALLOY 694 OR COPPER ALLOY STEM |
| Thread Series Designator | NPT |
| 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 |
|---|---|
| 1186-3-4 | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| 1186-700-34 PRIMARY | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| T-176-A-3/4IN | 5/9 Secondary reference Nibco Inc |
| 636E 3/4IN 300PSI | 5/9 Secondary reference Crane Co Div Valve Div |
| 3120-3/4IN | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-021-3809 is a Valve,gate, manufactured by Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-021-3809 has 2 manufacturer part numbers on file: 1186-3-4 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc), 1186-700-34 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-362-1471. Verify interchangeability with system specifications before substitution.
Key specifications for 1186-700-34: Inlet Relationship with Outlet: IDENTICAL; Maximum Operating Temp and Media for Which Designed: 550.0 FAHRENHEIT STEAM DEGF; Operating Pressure and Type: 300.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 600.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS; Stem Type: RISING. 21 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.