The Ring,externally Threaded, cataloged under National Stock Number 5365-01-345-4043, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 17 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5365-01-345-4043 |
| Primary Part Number | 803-4385051 PIECE 80 |
| Item Name | Ring,externally Threaded |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Bore Annular Internal Serration | NOT INCLUDED |
| Beveled Thread | INCLUDED |
| Drive Type | SLOTTED FACE |
| Thread Location | BOTH ENDS |
| Bore Shape | STRAIGHT |
| Thread Direction | RIGHT-HAND |
| Setscrew Locking Notch | NOT INCLUDED |
| Accommodation Type and Quantity | 2 SLOTS |
| Casehardening Indicator | NOT CASEHARDENED |
| Angle Between Accommodations in Deg | 180.0 |
| Thread Size | 4.625-16 |
| Screw Thread Series Designator | UN |
| Depth | 0.250 INCHES NOMINAL IN |
| Width | 0.250 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Bore Diameter | 3.500 INCHES MINIMUM AND 3.501 INCHES MAXIMUM IN |
| Material | COPPER ALLOY 903 |
| 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 |
|---|---|
| 4385051-X-80 | Naval Sea Systems Command (USA) |
| 803-4385051 PIECE 80 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5365-01-345-4043 is a Ring,externally Threaded, manufactured by Naval Sea Systems Command, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-01-345-4043 has 2 manufacturer part numbers on file: 4385051-X-80 (Naval Sea Systems Command), 803-4385051 PIECE 80 (Naval Sea Systems Command).
Key specifications for 803-4385051 PIECE 80: Bore Annular Internal Serration: NOT INCLUDED; Beveled Thread: INCLUDED; Drive Type: SLOTTED FACE; Overall Length: 1.000 INCHES NOMINAL IN. 17 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.