The Ring,externally Threaded, cataloged under National Stock Number 5365-01-181-2779, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Drs Network & Imaging Systems Llc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5365-01-181-2779 |
| Primary Part Number | 1D49485-1 |
| Item Name | Ring,externally Threaded |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Drs Network & Imaging Systems Llc |
| Status | ACTIVE |
| Bore Annular Internal Serration | NOT INCLUDED |
| Beveled Thread | NOT INCLUDED |
| Drive Type | LUG FACE |
| Diameter | 1.299 INCHES NOMINAL IN |
| Bore Shape | STRAIGHT |
| Thread Direction | RIGHT-HAND |
| Setscrew Locking Notch | NOT INCLUDED |
| Accommodation Type and Quantity | 4 LUGS |
| Radius From Geometric Axis to Accommodation | 0.599 INCHES NOMINAL IN |
| Height | 0.100 INCHES NOMINAL IN |
| Casehardening Indicator | CASEHARDENED |
| Angle Between Accommodations in Deg | 90.0 |
| Thread Size | 1.375-18 |
| Screw Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Thread Class | 3A A |
| Bore Diameter | 1.093 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 7075 |
| 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 |
|---|---|
| 1D49485-1 PRIMARY | Drs Network & Imaging Systems Llc (USA) |
| 1D49485-1 | Drs Sensors & Targeting Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 1D49485-1 | D/9 Drawing number reference only The Boeing Company |
| 1D49485-1 | 5/9 Secondary reference Mcdonnell Douglas Corp Mcdonnell Douglas Aerospace Defense and Electronics Systems |
NSN 5365-01-181-2779 is a Ring,externally Threaded, manufactured by Drs Network & Imaging Systems Llc, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-01-181-2779 has 2 manufacturer part numbers on file: 1D49485-1 (Drs Network & Imaging Systems Llc), 1D49485-1 (Drs Sensors & Targeting Systems, Inc.).
Key specifications for 1D49485-1: Bore Annular Internal Serration: NOT INCLUDED; Beveled Thread: NOT INCLUDED; Drive Type: LUG FACE; Diameter: 1.299 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.