The Valve,linear,directional Control, cataloged under National Stock Number 4820-01-603-0356, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Tyco Fire Products Lp. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-603-0356 |
| Primary Part Number | 65988 |
| Item Name | Valve,linear,directional Control |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Tyco Fire Products Lp |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 1.250 INCHES IN |
| Operating Pressure and Type | 160.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS |
| Body Material | STEEL COMP 316 |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| 65988 PRIMARY | Tyco Fire Products Lp (USA) |
| Reference | Meaning |
|---|---|
| 65988 | 5/9 Secondary reference Ansul Fire Protection |
NSN 4820-01-603-0356 is a Valve,linear,directional Control, manufactured by Tyco Fire Products Lp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-603-0356 has 1 manufacturer part number on file: 65988 (Tyco Fire Products Lp).
1 possible match (shared part number, not a government interchangeability claim): 7520-01-617-5673. Verify interchangeability with system specifications before substitution.
Key specifications for 65988: Nominal Pipe Size Accommodated: 1.250 INCHES IN; Operating Pressure and Type: 160.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS; Body Material: STEEL COMP 316; Special Features: ITEM SHALL CONSIST OF FACTORY ASSEMBLED AND TESTED ITEMS INCLUDING THREDED BRONZE BODY BALL VALVE, WITH MOUNTING PAD, DESIGNED FOR A MINIMUM 400 PSI WOG;VALVE SHALL BE FITTED WITH A STAINLESS STEEL BALL, STEM AND PACKING NUT;VALVE SEATS SHALL BE OF GLASS REINFORCED PTFE MATERIAL;NOMINAL VALVE LENGTH FROM THREAD INLET TO OUTLET IS 3.750 INCHES IN. 4 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.