The Valve,ball, cataloged under National Stock Number 4820-01-273-0497, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Conbraco Industries Inc. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-273-0497 |
| Primary Part Number | F1G 87-208-01 |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Conbraco Industries Inc |
| Status | ACTIVE |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Furnished Items and Quantity | 1 LEVER |
| Flange Face Design | RAISED STRAIGHT ALL ENDS |
| Bolt Circle Nominal Diameter | 4.750 INCHES ALL ENDS IN |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Bolt Hole Nominal Diameter | 0.750 INCHES ALL ENDS IN |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Size | 2.000 INCHES IN |
| Nominal Outside Diameter | 6.000 INCHES ALL ENDS IN |
| Bolt Hole Quantity | 4 ALL ENDS |
| Face to Face Distance | 7.000 INCHES IN |
| Material | STEEL COMP 316 BODY |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE SEAT |
| Raised Face Nominal Diameter | 3.625 INCHES ALL ENDS IN |
| Valve Operation Method | MANUAL |
| Raised Face Nominal Height | 0.062 INCHES ALL ENDS IN |
| Nominal Thickness | 0.750 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 |
| Part Number | Manufacturer |
|---|---|
| 87-208-01 | Conbraco Industries Inc (USA) |
| F1G 87-208-01 PRIMARY | Conbraco Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| FIG 87-208-01 | C/1 Advisory reference — outside the item-of-supply concept Conbraco Industries Inc |
NSN 4820-01-273-0497 is a Valve,ball, manufactured by Conbraco Industries Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-273-0497 has 2 manufacturer part numbers on file: 87-208-01 (Conbraco Industries Inc), F1G 87-208-01 (Conbraco Industries Inc).
1 possible match (shared part number, not a government interchangeability claim): 5985-01-379-9213. Verify interchangeability with system specifications before substitution.
Key specifications for F1G 87-208-01: Flange Shape: ROUND WITH HOLES ALL ENDS; Furnished Items and Quantity: 1 LEVER; Flange Face Design: RAISED STRAIGHT ALL ENDS; Bolt Circle Nominal Diameter: 4.750 INCHES ALL ENDS IN. 18 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.