The Cylinder Assembly,actuating,line, cataloged under National Stock Number 3040-01-012-8679, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Phd, Inc.. Government technical data includes 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-012-8679 |
| Primary Part Number | ML21732-1 |
| Item Name | Cylinder Assembly,actuating,line |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Phd, Inc. |
| Status | ACTIVE |
| Pressure Rating | 2000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Mounting Facility Thread Class | 2B |
| Temp Rating | 160.0 FAHRENHEIT DEGF |
| Mounting Facility Circle Diameter | 3.750 INCHES NOMINAL IN |
| Extended Length | 9.750 INCHES NOMINAL IN |
| Design Characteristics | DOUBLE ACTING SINGLE CYLINDER |
| Overall Diameter | 4.500 INCHES NOMINAL IN |
| Mounting Provision Arrangement Style | FOUR HOLE BOLT CIRCLE |
| Mounting Facility Thread Quantity Per Inch | 18 |
| Mounting Facility Thread Diameter | 0.313 INCHES NOMINAL IN |
| Mounting Facility Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Mounting Provision for Which Designed | THREADED MOUNTING HOLES |
| Mounting Type and Location | FLANGE PISTON ROD END |
| Mounting Facility Thread Direction | RIGHT-HAND |
| 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 |
|---|---|
| ML21732-1 PRIMARY | Phd, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 1003079-01 | 7/2 Vendor item drawing reference Cae Usa Inc. |
| 1003079-01 | 5/9 Secondary reference Raytheon Technical Services Company |
NSN 3040-01-012-8679 is a Cylinder Assembly,actuating,line, manufactured by Phd, Inc., classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-012-8679 has 1 manufacturer part number on file: ML21732-1 (Phd, Inc.).
Key specifications for ML21732-1: Pressure Rating: 2000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Mounting Facility Thread Class: 2B; Temp Rating: 160.0 FAHRENHEIT DEGF; Mounting Facility Circle Diameter: 3.750 INCHES NOMINAL IN. 14 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.