The Spacer,ring, cataloged under National Stock Number 5365-00-003-5478, 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 Is Div Northrop Grumman Aeronautics Systems. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5365-00-003-5478 |
| Primary Part Number | 3-51247-13 |
| Item Name | Spacer,ring |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| Status | ACTIVE |
| Outside Diameter | 3.730 INCHES MINIMUM AND 3.745 INCHES MAXIMUM IN |
| Overall Thickness | 0.029 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-A-250/2,TEMPER T6 FED SPEC SINGLE MATERIAL RESPONSE |
| Inside Diameter | 3.375 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 3003 |
| 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 |
|---|---|
| 3-51247-13 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| Reference | Meaning |
|---|---|
| 3-51247-13 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
NSN 5365-00-003-5478 is a Spacer,ring, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-00-003-5478 has 1 manufacturer part number on file: 3-51247-13 (Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems).
Key specifications for 3-51247-13: Outside Diameter: 3.730 INCHES MINIMUM AND 3.745 INCHES MAXIMUM IN; Overall Thickness: 0.029 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN; Material Document and Classification: QQ-A-250/2,TEMPER T6 FED SPEC SINGLE MATERIAL RESPONSE; Inside Diameter: 3.375 INCHES NOMINAL IN. 5 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.