The Valve,check, cataloged under National Stock Number 4820-01-138-5567, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is International Valve Corp Dba Check-All Valve Mfg. Co.. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-138-5567 |
| Primary Part Number | 3/4"FIV-15/30-SS-T-6.5 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | International Valve Corp Dba Check-All Valve Mfg. Co. |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Flange Face Design | RAISED STRAIGHT ALL ENDS |
| Mounting Position | VERTICAL |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Material Document and Classification | AISI 316 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | AISI 316 ASSN STD 1ST MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Size | 0.750 INCHES IN |
| Maximum Operating Temp | 700.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Nominal Outside Diameter | 1.688 INCHES ALL ENDS IN |
| Disk Loading Method | SPRING |
| Material | STEEL COMP 316 BODY |
| Material | STEEL COMP 316 AND PLASTIC FLOW CONTROL DEVICE |
| Valve Operation Method | AUTOMATIC |
| Nominal Thickness | 0.250 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 |
|---|---|
| 3/4"FIV-15/30-SS-T-6.5 PRIMARY | International Valve Corp Dba Check-All Valve Mfg. Co. (USA) |
| Reference | Meaning |
|---|---|
| 3-4-F1V-15-SS-T | C/1 Advisory reference — outside the item-of-supply concept International Valve Corp Dba Check-All Valve Mfg. Co. |
| 3-4 FIV-15-SS-M | C/1 Advisory reference — outside the item-of-supply concept International Valve Corp Dba Check-All Valve Mfg. Co. |
| 3-4-FIV-15-SS-T | C/1 Advisory reference — outside the item-of-supply concept International Valve Corp Dba Check-All Valve Mfg. Co. |
| 3/4-FIV-15-SS-T-6.5 | 5/9 Secondary reference International Valve Corp Dba Check-All Valve Mfg. Co. |
NSN 4820-01-138-5567 is a Valve,check, manufactured by International Valve Corp Dba Check-All Valve Mfg. Co., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-138-5567 has 1 manufacturer part number on file: 3/4"FIV-15/30-SS-T-6.5 (International Valve Corp Dba Check-All Valve Mfg. Co.).
Key specifications for 3/4"FIV-15/30-SS-T-6.5: Flow Control Device: DISK; Flange Shape: ROUND WITH HOLES ALL ENDS; Flange Face Design: RAISED STRAIGHT ALL ENDS; Mounting Position: VERTICAL. 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.