The Valve,stop-Check, cataloged under National Stock Number 4820-00-045-5772, 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 12 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-045-5772 |
| Primary Part Number | B10-308P-05TS 7840-027L1 |
| Item Name | Valve,stop-Check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Nominal Pipe Size Accommodated | 3.000 INCHES FIRST END IN |
| Connection Style | BEVELED (PIPE) FIRST END |
| Criticality Code Justification | ZZZY |
| Style Designator | ANGLE |
| Operating Pressure | 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Bonnet Type | OUTSIDE SCREW-YOKE |
| Maximum Operating Temp | 975.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Bonnet Attachment Method | PRESSURE SEAL, RING TYPE |
| Material | STEEL COMP 416 STEM |
| Valve Operation Method | MANUAL |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| 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 |
|---|---|
| B10-308P-05TS 7840-027L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| N-10263-20-1 3INL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 7840-027 B10-308P-05TSL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 1S1290-5L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| N-10263-20-1 3IN | 5/9 Secondary reference U.S. Government activity |
| 7840-027 B10-308P-05TS | 5/1 Secondary reference Velan Valve Corp. |
| B10-308P-05TS 7840-027 | 5/1 Secondary reference Velan Valve Corp. |
| 1S1290-5 | 3/9 Design control — primary reference U.S. Government activity |
| MIL-V-22052L1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| MIL-V-22052 | 4/1 Identification reference U.S. Government activity |
NSN 4820-00-045-5772 is a Valve,stop-Check, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-045-5772 has 4 manufacturer part numbers on file: B10-308P-05TS 7840-027L1 (Naval Inventory Control Point Mechanicsburg), N-10263-20-1 3INL1 (Naval Inventory Control Point Mechanicsburg), 7840-027 B10-308P-05TSL1 (Naval Inventory Control Point Mechanicsburg), 1S1290-5L1 (Naval Inventory Control Point Mechanicsburg).
7 possible matches (shared part number, not a government interchangeability claim): 4820-00-080-8053, 4820-00-833-8267, 4820-00-837-7180. Verify interchangeability with system specifications before substitution.
Key specifications for B10-308P-05TS 7840-027L1: Flow Control Device: DISK; Nominal Pipe Size Accommodated: 3.000 INCHES FIRST END IN; Connection Style: BEVELED (PIPE) FIRST END; Criticality Code Justification: ZZZY. 12 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 4820-00-045-5772 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.