The Plug,machine Thread, cataloged under National Stock Number 5365-00-360-7665, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Zenith Fuel Systems Llc. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5365-00-360-7665 |
| Primary Part Number | C138-53 |
| Item Name | Plug,machine Thread |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Zenith Fuel Systems Llc |
| Status | ACTIVE |
| Head Height | 0.120 INCHES NOMINAL IN |
| Connection Style | PLAIN |
| Core Depth | 0.200 INCHES NOMINAL IN |
| Thread Length | 0.140 INCHES NOMINAL EXTERNAL IN |
| Style Designator | PLUG, MACHINE |
| Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| Thread Direction | RIGHT-HAND EXTERNAL |
| Material | STEEL COMP B1112 OR STEEL COMP 1112 OR STEEL COMP 1212 OVERALL |
| 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 |
|---|---|
| C138-53 | Honeywell Intl Inc Defense Avionics Systems (USA) |
| C138-53 PRIMARY | Zenith Fuel Systems Llc (USA) |
| 328551 | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| Reference | Meaning |
|---|---|
| C138-53 | 5/9 Secondary reference Bendix Corp the |
| 328551 | 5/9 Secondary reference Hercules Engine Co Inc |
NSN 5365-00-360-7665 is a Plug,machine Thread, manufactured by Zenith Fuel Systems Llc, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-00-360-7665 has 3 manufacturer part numbers on file: C138-53 (Honeywell Intl Inc Defense Avionics Systems), C138-53 (Zenith Fuel Systems Llc), 328551 (Brinkley Technology Group Llc Dba Hercules Manufacturing).
Key specifications for C138-53: Head Height: 0.120 INCHES NOMINAL IN; Connection Style: PLAIN; Core Depth: 0.200 INCHES NOMINAL IN; Thread Length: 0.140 INCHES NOMINAL EXTERNAL IN. 8 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.