The Disk,valve, cataloged under National Stock Number 4820-00-142-2138, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hatch & Kirk, Inc.. Government technical data includes 6 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through both NSN and commercial part number lookups. 34 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-00-142-2138 |
| Primary Part Number | 3278191 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hatch & Kirk, Inc. |
| Status | ACTIVE |
| Pressure Rating | 125.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Outside Diameter | 1.078 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Inside Diameter | 0.385 INCHES NOMINAL IN |
| Media for Which Designed | WATER, SALT |
| Material | RUBBER |
| 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 |
|---|---|
| 3278191 PRIMARY | Hatch & Kirk, Inc. (USA) |
| Reference | Meaning |
|---|---|
| AA23940PC8 | C/1 Advisory reference — outside the item-of-supply concept Hunt Valve Company, Inc. |
| AA34197PC18 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| D25208 | C/1 Advisory reference — outside the item-of-supply concept Hunt Valve Company, Inc. |
| AVP10S42-084PC203 | 5/9 Secondary reference Naval Sea Systems Command |
| AA34197PC18 | C/1 Advisory reference — outside the item-of-supply concept Hunt Valve Company, Inc. |
| BM3929PC8 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| D2-9855PC203 | 5/9 Secondary reference Usm Corp Sub of Emhart Industries Inc Farrel Co Div |
| AA18969-3PC3 | 5/9 Secondary reference Hammel Dahl Inc |
| AVP10S42-084PC203 | 5/9 Secondary reference U.S. Government activity |
| AVP10S42-055PC240 | 5/9 Secondary reference Naval Sea Systems Command |
| AA34197PC18 | 5/9 Secondary reference Hammel Dahl Inc |
| D2-7551PC203 | 5/9 Secondary reference Usm Corp Sub of Emhart Industries Inc Farrel Co Div |
| C34599PC8 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| 275-650PC | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| BM3929PC8 | C/1 Advisory reference — outside the item-of-supply concept Hunt Valve Company, Inc. |
| AA15554-10PC18 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| AA23940PC8 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| C23599PC8 | 5/9 Secondary reference Hammel Dahl Inc |
| 3278191 | 5/9 Secondary reference General Motors Corp Electro-Motive Div |
| D2-9713PC108 | 5/9 Secondary reference Usm Corp Sub of Emhart Industries Inc Farrel Co Div |
NSN 4820-00-142-2138 is a Disk,valve, manufactured by Hatch & Kirk, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-142-2138 has 1 manufacturer part number on file: 3278191 (Hatch & Kirk, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 2815-01-028-3357. Verify interchangeability with system specifications before substitution.
Key specifications for 3278191: Overall Height: 0.250 INCHES NOMINAL IN; Pressure Rating: 125.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Outside Diameter: 1.078 INCHES NOMINAL IN; Style Designator: PLAIN. 6 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.