The Valve,angle, cataloged under National Stock Number 4820-01-511-8988, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Scott Specialty Gases, Inc. Dba Scott Medical Products. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-511-8988 |
| Primary Part Number | 51-40BF-590 AND 55-91RB-42 |
| Item Name | Valve,angle |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Scott Specialty Gases, Inc. Dba Scott Medical Products |
| Status | ACTIVE |
| Minimum Operating Temp | -60.0 FAHRENHEIT DEGF |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Maximum Operating Temp | 400.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Material | COPPER ALLOY BODY |
| 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 |
|---|---|
| 51-40BF-590 AND 55-91RB-42 PRIMARY | Scott Specialty Gases, Inc. Dba Scott Medical Products (USA) |
| Reference | Meaning |
|---|---|
| 54-61C-2MA-590 | 5/9 Secondary reference Scott Specialty Gases, Inc. Dba Scott Medical Products |
NSN 4820-01-511-8988 is a Valve,angle, manufactured by Scott Specialty Gases, Inc. Dba Scott Medical Products, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-511-8988 has 1 manufacturer part number on file: 51-40BF-590 AND 55-91RB-42 (Scott Specialty Gases, Inc. Dba Scott Medical Products).
Key specifications for 51-40BF-590 AND 55-91RB-42: Minimum Operating Temp: -60.0 FAHRENHEIT DEGF; Style Designator: STRAIGHT THRU; Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Maximum Operating Temp: 400.0 FAHRENHEIT SINGLE RESPONSE DEGF. 5 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.