The Valve,ball, cataloged under National Stock Number 4820-01-218-2360, 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 14 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-218-2360 |
| Primary Part Number | 3/4-21-1100TT-0 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Portland Valve Llc |
| Status | ACTIVE |
| Connection Style | PLAIN,OPTIONAL END(PIPE) ALL ENDS |
| Criticality Code Justification | FEAT |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.750 INCHES ALL ENDS IN |
| Maximum Operating Temp | 400.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE STEM |
| Material | COPPER ALLOY 857 BODY |
| Material | COPPER ALLOY 857 FLOW CONTROL DEVICE |
| Material | COPPER ALLOY 857 SEAT |
| Thread Series Designator | NPT ALL ENDS |
| Valve Operation Method | MANUAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 9497M77P01 | Rhinestahl Corporation Dba Rhinestahl (USA) |
| 9497M77P01 | General Electric Company (USA) |
| 3/4-21-1100TT-0 PRIMARY | Portland Valve Llc (USA) |
| Reference | Meaning |
|---|---|
| 3/4-21/1100T-0 | 5/9 Secondary reference Portland Valve Llc |
NSN 4820-01-218-2360 is a Valve,ball, manufactured by Portland Valve Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-218-2360 has 3 manufacturer part numbers on file: 9497M77P01 (Rhinestahl Corporation Dba Rhinestahl), 9497M77P01 (General Electric Company), 3/4-21-1100TT-0 (Portland Valve Llc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-571-6222. Verify interchangeability with system specifications before substitution.
Key specifications for 3/4-21-1100TT-0: Connection Style: PLAIN,OPTIONAL END(PIPE) ALL ENDS; Criticality Code Justification: FEAT; Connection Type: THREADED INTERNAL PIPE ALL ENDS; Style Designator: STRAIGHT THRU. 14 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.
NSN 4820-01-218-2360 has DEMIL Code Q. 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.