The Valve,ball, cataloged under National Stock Number 4820-01-644-2982, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Nibco Inc Chemtrol Div. Government technical data includes 16 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-644-2982 |
| Primary Part Number | NL99K4B |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Nibco Inc Chemtrol Div |
| Status | ACTIVE |
| Style Designator | STRAIGHT THRU |
| Material Document and Classification | ASTM-A-276; TYPE 316 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM-A-351; TYPE CF8M ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Material Document and Classification | ASTM-A-276; TYPE 316 ASSN STD SINGLE MATERIAL RESPONSE STEM |
| Material Document and Classification | ASTM-A-351; TYPE CF8M ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Operating Pressure | 1000.00 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Size | 1.25 INCHES IN |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Maximum Operating Temp | 400.00 FAHRENHEIT SINGLE RESPONSE DEGF |
| Face to Face Distance | 4.13 INCHES IN |
| Media for Which Designed | WATER, FRESH SINGLE RESPONSE |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE PACKING |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE SEAT |
| Material | STEEL STAINLESS - USE STB000 STEM |
| Material | STEEL STAINLESS - USE STB000 FLOW CONTROL DEVICE |
| Material | STEEL STAINLESS - USE STB000 BODY |
| 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 |
|---|---|
| NL99K4B PRIMARY | Nibco Inc Chemtrol Div (USA) |
NSN 4820-01-644-2982 is a Valve,ball, manufactured by Nibco Inc Chemtrol Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-644-2982 has 1 manufacturer part number on file: NL99K4B (Nibco Inc Chemtrol Div).
Key specifications for NL99K4B: Style Designator: STRAIGHT THRU; Material Document and Classification: ASTM-A-276; TYPE 316 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM-A-351; TYPE CF8M ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE; Material Document and Classification: ASTM-A-276; TYPE 316 ASSN STD SINGLE MATERIAL RESPONSE STEM; Material Document and Classification: ASTM-A-351; TYPE CF8M ASSN STD SINGLE MATERIAL RESPONSE BODY. 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.