The Valve,angle, cataloged under National Stock Number 4820-01-399-7871, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-399-7871 |
| Primary Part Number | B11826-5-1C1 |
| Item Name | Valve,angle |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 0.500 INCHES ALL ENDS IN |
| Connection Style | GROOVED (PIPE) ALL ENDS |
| Criticality Code Justification | ZZZY |
| Connection Type | BUTT WELD PIPE ALL ENDS |
| Style Designator | ANGLE |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Material | NICKEL ALLOY BODY |
| Valve Operation Method | AUTOMATIC |
| Reference Number Differentiating Characteristics | QUALITY CONTROLLED IAW NAVY LEVEL 1 ASSURANCE GUIDE, CLEANED IAW MIL-C-52211; ALSO REQUIRES SPECIAL CLEANING AND PACKAGING FOR OXYGEN AND NITROGEN SERVICE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| B11826-5-1C1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 1970-0001-11C1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 211007989SB | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| B11826-5-1 | 3/1 Design control — primary reference Carleton Technologies Inc Div Tampa Facility |
| 1970-0001-11 | 5/1 Secondary reference Carleton Technologies Inc Div Tampa Facility |
NSN 4820-01-399-7871 is a Valve,angle, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-399-7871 has 3 manufacturer part numbers on file: B11826-5-1C1 (Naval Inventory Control Point Mechanicsburg), 1970-0001-11C1 (Naval Inventory Control Point Mechanicsburg), 211007989SB (Naval Inventory Control Point Mechanicsburg).
Key specifications for B11826-5-1C1: Nominal Pipe Size Accommodated: 0.500 INCHES ALL ENDS IN; Connection Style: GROOVED (PIPE) ALL ENDS; Criticality Code Justification: ZZZY; Connection Type: BUTT WELD PIPE ALL ENDS. 9 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 4820-01-399-7871 has DEMIL Code B. 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.