The Sleeve,shut-Off Valve Linkage, cataloged under National Stock Number 3040-00-349-0058, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3040-00-349-0058 |
| Primary Part Number | A51F20500-17 |
| Item Name | Sleeve,shut-Off Valve Linkage |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| General Characteristics Item Description | 6.000 IN. MIN,7.500 IN. MAX O/A LG 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 |
|---|---|
| A51F20500-17 | Tens Machine Company, Inc. Dba Tens Machine Co Inc (USA) |
| A51F20500-17 | Howe Machine & Tool Corp. Dba Howe Machine & Tool Corp (USA) |
| A51F20500-17 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| A51F20500-17 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| A51F20500-17 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 3040-00-349-0058 is a Sleeve,shut-Off Valve Linkage, manufactured by Northrop Grumman Systems Corporation, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-349-0058 has 3 manufacturer part numbers on file: A51F20500-17 (Tens Machine Company, Inc. Dba Tens Machine Co Inc), A51F20500-17 (Howe Machine & Tool Corp. Dba Howe Machine & Tool Corp), A51F20500-17 (Northrop Grumman Systems Corporation).
Key specifications for A51F20500-17: General Characteristics Item Description: 6.000 IN. MIN,7.500 IN. MAX O/A LG IN; End Item Identification: AIRCRAFT MODEL F-14A A. 1 specification is 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.