The Valve,float, cataloged under National Stock Number 4820-01-145-5505, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-145-5505 |
| Item Name | Valve,float |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flow Control Device | DISKDISK |
| Flange Shape | ROUND WITH HOLES ALL ENDSROUND WITH HOLES ALL ENDS |
| Flange Face Design | PLAIN ALL ENDSPLAIN ALL ENDS |
| Bolt Circle Nominal Diameter | 3.938 INCHES ALL ENDS3.938 INCHES ALL ENDS IN |
| Connection Type | FLANGE ALL ENDSFLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU FLANGED ENDSSTRAIGHT THRU FLANGED ENDS |
| Bolt Hole Nominal Diameter | 0.562 INCHES ALL ENDS0.562 INCHES ALL ENDS IN |
| Valve Size | 1.500 INCHES1.500 INCHES IN |
| Bonnet Type | INSIDE SCREWINSIDE SCREW |
| Nominal Outside Diameter | 5.000 INCHES ALL ENDS5.000 INCHES ALL ENDS IN |
| Bolt Hole Quantity | 6 ALL ENDS6 ALL ENDS |
| Bonnet Attachment Method | BOLTEDBOLTED |
| Face to Face Distance | 8.750 INCHES8.750 INCHES IN |
| Material | NICKEL ALLOY OVERALL |
| Valve Operation Method | MANUALMANUAL |
| Nominal Thickness | 0.062 INCHES ALL ENDS0.062 INCHES ALL ENDS IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 14H2192 | 3/9 Design control — primary reference Beaird Industries Inc. |
| 115-14-H-2192 | D/9 Drawing number reference only Beaird Industries Inc. |
NSN 4820-01-145-5505 is a Valve,float, classified under FSC 4820, Valves, Nonpowered. Status: active.
7 possible matches (shared part number, not a government interchangeability claim): 4820-01-145-5625, 4820-01-145-5626, 4820-01-145-5627. Verify interchangeability with system specifications before substitution.
Key specifications for 4820-01-145-5505: Flow Control Device: DISKDISK; Flange Shape: ROUND WITH HOLES ALL ENDSROUND WITH HOLES ALL ENDS; Flange Face Design: PLAIN ALL ENDSPLAIN ALL ENDS; Bolt Circle Nominal Diameter: 3.938 INCHES ALL ENDS3.938 INCHES ALL ENDS IN. 16 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.