The Ring,externally Threaded, cataloged under National Stock Number 5365-00-003-9645, 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 Corp Electronic Systems Defensive System Div. Government technical data includes 16 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5365-00-003-9645 |
| Primary Part Number | 301275 |
| Item Name | Ring,externally Threaded |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Northrop Grumman Corp Electronic Systems Defensive System Div |
| Status | ACTIVE |
| Bore Annular Internal Serration | NOT INCLUDED |
| Beveled Thread | NOT INCLUDED |
| Surface Treatment Document and Classification | LC+77-2037 CLASS 1 GRADE A TYPE 1 FSCM 36659 MFR REF SINGLE TREATMENT RESPONSE |
| Drive Type | SLOTTED FACE |
| Setscrew Locking Notch | NOT INCLUDED |
| Accommodation Type and Quantity | 4 SLOTS |
| Casehardening Indicator | NOT CASEHARDENED |
| Angle Between Accommodations in Deg | 90.0 |
| Thread Size | 4.000-32 |
| Screw Thread Series Designator | UNS |
| Surface Treatment | PASSIVATE |
| Depth | 0.050 INCHES NOMINAL IN |
| Width | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Bore Diameter | 3.819 INCHES MINIMUM AND 3.825 INCHES MAXIMUM 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 |
|---|---|
| 301275 PRIMARY | Northrop Grumman Corp Electronic Systems Defensive System Div (USA) |
NSN 5365-00-003-9645 is a Ring,externally Threaded, manufactured by Northrop Grumman Corp Electronic Systems Defensive System Div, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-00-003-9645 has 1 manufacturer part number on file: 301275 (Northrop Grumman Corp Electronic Systems Defensive System Div).
Key specifications for 301275: Bore Annular Internal Serration: NOT INCLUDED; Beveled Thread: NOT INCLUDED; Surface Treatment Document and Classification: LC+77-2037 CLASS 1 GRADE A TYPE 1 FSCM 36659 MFR REF SINGLE TREATMENT RESPONSE; Drive Type: SLOTTED FACE. 16 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.