The Plug,machine Thread, cataloged under National Stock Number 5365-01-643-6571, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Fluid Handling Llc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5365-01-643-6571 |
| Primary Part Number | 3-378-2-12-100-03 |
| Item Name | Plug,machine Thread |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Fluid Handling Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| 3-378-2-12-100-03 PRIMARY | Fluid Handling Llc (USA) |
| Reference | Meaning |
|---|---|
| 5-116-06-054-002 PC 8 | C/1 Advisory reference — outside the item-of-supply concept Fluid Handling Llc |
| 5-116-06-054-002 | D/9 Drawing number reference only Fluid Handling Llc |
NSN 5365-01-643-6571 is a Plug,machine Thread, manufactured by Fluid Handling Llc, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-01-643-6571 has 1 manufacturer part number on file: 3-378-2-12-100-03 (Fluid Handling Llc).
2 possible matches (shared part number, not a government interchangeability claim): 5330-01-644-0417, 3040-01-644-3099. Verify interchangeability with system specifications before substitution.
Key specifications for 3-378-2-12-100-03: Part Name Assigned by Controlling Agency: PLUG,O-RING. 0 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.