The Cylinder Assembly,actuating,line, cataloged under National Stock Number 3040-01-275-2522, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Huntington Ingalls Inc Div Newport News Shipbuilding. Government technical data includes 24 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-275-2522 |
| Primary Part Number | 704-6016949 ASSY 98 |
| Item Name | Cylinder Assembly,actuating,line |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Huntington Ingalls Inc Div Newport News Shipbuilding |
| Status | ACTIVE |
| First Piston Rod End Thread Class | 2A A |
| Mounting Facility Thread Class | 3B |
| Compressed Length | 14.500 INCHES NOMINAL IN |
| Extended Length | 15.750 INCHES NOMINAL IN |
| Design Characteristics | SINGLE ACTING SINGLE CYLINDER |
| First Piston Rod End Thread Quantity Per Inch | 11 |
| First End External Thread Length | 0.937 INCHES NOMINAL IN |
| Mounting Provision Arrangement Style | FOUR HOLE SQUARE |
| First Piston Rod End Style | EXTERNAL THREADED |
| Longest Vertical Distance Between Mounting Centers | 1.230 INCHES NOMINAL IN |
| Mounting Facility Thread Quantity Per Inch | 18 |
| Mounting Facility Thread Length | 0.906 INCHES NOMINAL IN |
| Mounting Facility Thread Diameter | 0.375 INCHES NOMINAL IN |
| Inside Diameter | 0.992 INCHES NOMINAL IN |
| Port Style | SOCKET W/BRAZING RING |
| First Piston Rod End Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Mounting Facility Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Mounting Provision for Which Designed | THREADED MOUNTING HOLES |
| Integral Valve Operation Method | HYDRAULIC |
| Mounting Type and Location | LUG(S) CENTER SECTION |
| Mounting Facility Thread Direction | RIGHT-HAND |
| First Piston Rod End Thread Diameter | 0.625 INCHES NOMINAL IN |
| First End Outside Diameter | 0.875 INCHES NOMINAL IN |
| Longest Horizontal Distance Between Mounting Centers | 1.230 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 704-6016949 ASSY 98 PRIMARY | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 704-6016949 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 3040-01-275-2522 is a Cylinder Assembly,actuating,line, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-275-2522 has 1 manufacturer part number on file: 704-6016949 ASSY 98 (Huntington Ingalls Inc Div Newport News Shipbuilding).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-275-2526. Verify interchangeability with system specifications before substitution.
Key specifications for 704-6016949 ASSY 98: First Piston Rod End Thread Class: 2A A; Mounting Facility Thread Class: 3B; Compressed Length: 14.500 INCHES NOMINAL IN; Extended Length: 15.750 INCHES NOMINAL IN. 24 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.
NSN 3040-01-275-2522 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.