The Valve,float, cataloged under National Stock Number 4820-01-017-4215, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics. Government technical data includes 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-017-4215 |
| Primary Part Number | 7-1255-51 |
| Item Name | Valve,float |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Flange Shape | RECTANGULAR ALL ENDS |
| Flange Face Design | PLAIN FIRST END |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE 2 MIL STD SINGLE TREATMENT RESPONSE |
| Nominal Length | 6.200 INCHES ALL ENDS IN |
| Connection Type | FLANGE FIRST END |
| Style Designator | STRAIGHT THRU |
| Material Document and Classification | QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Bolt Hole Nominal Diameter | 0.281 INCHES FIRST END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 1.400 INCHES ALL ENDS IN |
| Bolt Hole Quantity | 12 FIRST END |
| Surface Treatment | ANODIZE |
| Nominal Width | 4.480 INCHES ALL ENDS IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 1.400 INCHES ALL ENDS IN |
| Material | ALUMINUM ALLOY 2024 FLOW CONTROL DEVICE |
| Material | ALUMINUM ALLOY BODY |
| Nominal Thickness | 0.250 INCHES FIRST END IN |
| 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 |
|---|---|
| 7-1255-51 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics (USA) |
| Reference | Meaning |
|---|---|
| 10-3066-1 | 7/2 Vendor item drawing reference U.S. Government activity |
| 7-1255-51 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-017-4215 is a Valve,float, manufactured by Parker-Hannifin Corporation Dba Pneutronics, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-017-4215 has 1 manufacturer part number on file: 7-1255-51 (Parker-Hannifin Corporation Dba Pneutronics).
2 possible matches (shared part number, not a government interchangeability claim): 5950-01-276-2143, 5950-01-294-8279. Verify interchangeability with system specifications before substitution.
Key specifications for 7-1255-51: Flow Control Device: POPPET; Flange Shape: RECTANGULAR ALL ENDS; Flange Face Design: PLAIN FIRST END; Surface Treatment Document and Classification: MIL-A-8625,TYPE 2 MIL STD SINGLE TREATMENT RESPONSE. 17 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.