The Ring,externally Threaded, cataloged under National Stock Number 5365-01-218-7729, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5365-01-218-7729 |
| Primary Part Number | M5399-0007 |
| Item Name | Ring,externally Threaded |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Bore Annular Internal Serration | NOT INCLUDED |
| Beveled Thread | NOT INCLUDED |
| Bore Edge Process | ANY ACCEPTABLE |
| Drive Type | DRILLED FACE |
| Thread Pitch Diameters | +3.1005 TO 3.1037 INCHES IN |
| Diameter | 0.136 INCHES NOMINAL IN |
| Bore Shape | STRAIGHT |
| Thread Direction | RIGHT-HAND |
| Setscrew Locking Notch | NOT INCLUDED |
| Accommodation Type and Quantity | 4 HOLES |
| Radius From Geometric Axis to Accommodation | 1.406 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Angle Between Accommodations in Deg | 90.0 |
| Thread Size | 3.125-32 |
| Screw Thread Series Designator | NONSTANDARD |
| Surface Treatment | PASSIVATE |
| Depth | 0.100 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN |
| Bore Diameter | 2.625 INCHES NOMINAL IN |
| Material | STEEL COMP 303 |
| 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 |
|---|---|
| M5399-0007 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| Reference | Meaning |
|---|---|
| M5399-7 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
NSN 5365-01-218-7729 is a Ring,externally Threaded, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-01-218-7729 has 1 manufacturer part number on file: M5399-0007 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
Key specifications for M5399-0007: Bore Annular Internal Serration: NOT INCLUDED; Beveled Thread: NOT INCLUDED; Bore Edge Process: ANY ACCEPTABLE; Drive Type: DRILLED FACE. 19 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.