The Collar,shaft, cataloged under National Stock Number 3040-00-009-7588, 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 13 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3040-00-009-7588 |
| Primary Part Number | A51H30518-11 |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Surface Finish | 125 MICROINCHES OUTSIDE PERIPHERY |
| Surface Finish | 63 MICROINCHES INSIDE PERIPHERY |
| Style Designator | PLAIN ROUND |
| Material Document and Classification | QQ-A-200/3, ALLOY 2024, T3510 FED SPEC SINGLE MATERIAL RESPONSE |
| Outside Diameter | 4.187 INCHES NOMINAL IN |
| Hole Diameter and Location | 0.1150 INCHES MINIMUM ALL HOLES AND 0.1200 INCHES MAXIMUM ALL HOLES IN |
| Angle Between Centerlines of Securing Holes in Deg | 120.0 |
| Securing Hole Quantity | 3 |
| Surface Treatment | ANODIZE |
| Test Data Document | 81349-MIL-I-6866 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Bore Diameter | 4.0570 INCHES MINIMUM AND 4.0670 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY 2024 |
| Thickness | 0.500 INCHES NOMINAL 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 |
|---|---|
| A51H30518-11 | Triumph Actuation Systems, Llc Div Triumph Actuation Systems - Freeport (USA) |
| A51H30518-11 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| A51H30518-11 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| A51H30518-11 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 3040-00-009-7588 is a Collar,shaft, manufactured by Northrop Grumman Systems Corporation, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-009-7588 has 2 manufacturer part numbers on file: A51H30518-11 (Triumph Actuation Systems, Llc Div Triumph Actuation Systems - Freeport), A51H30518-11 (Northrop Grumman Systems Corporation).
Key specifications for A51H30518-11: Surface Finish: 125 MICROINCHES OUTSIDE PERIPHERY; Surface Finish: 63 MICROINCHES INSIDE PERIPHERY; Style Designator: PLAIN ROUND; Material Document and Classification: QQ-A-200/3, ALLOY 2024, T3510 FED SPEC SINGLE MATERIAL RESPONSE. 13 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.