The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-653-2230, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Penn Engineering & Manufacturing Corp. Dba Pennengineering. Government technical data includes 11 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 | 5340-01-653-2230 |
| Primary Part Number | BSO-M3-6ZI |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Penn Engineering & Manufacturing Corp. Dba Pennengineering |
| Status | ACTIVE |
| Flange Width Across Flats | 4.8 MILLIMETERS NOMINAL MM |
| Width Across Flats | 4.8 MILLIMETERS NOMINAL MM |
| Thread Pitch in Millimeters | 0.5 LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Length | 3.20 MILLIMETERS MINIMUM LEFT INTERNAL (INCLUDES THRU THREAD) MM |
| Style Designator | FLANGED LEFT INTERNAL THREAD |
| Thread Direction | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| Nominal Thread Size | 3.0 MILLIMETERS LEFT INTERNAL (INCLUDES THRU THREAD) MM |
| Cross-Sectional Shape | HEXAGON |
| Surface Treatment | ZINC OVERALL |
| Material | STEEL OVERALL |
| Thread Series Designator | M LEFT INTERNAL (INCLUDES THRU THREAD) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| BSO-M3-6ZI PRIMARY | Penn Engineering & Manufacturing Corp. Dba Pennengineering (USA) |
NSN 5340-01-653-2230 is a Standoff,threaded,spacing, manufactured by Penn Engineering & Manufacturing Corp. Dba Pennengineering, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-653-2230 has 1 manufacturer part number on file: BSO-M3-6ZI (Penn Engineering & Manufacturing Corp. Dba Pennengineering).
Key specifications for BSO-M3-6ZI: Flange Width Across Flats: 4.8 MILLIMETERS NOMINAL MM; Width Across Flats: 4.8 MILLIMETERS NOMINAL MM; Thread Pitch in Millimeters: 0.5 LEFT INTERNAL (INCLUDES THRU THREAD); Thread Length: 3.20 MILLIMETERS MINIMUM LEFT INTERNAL (INCLUDES THRU THREAD) MM. 11 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.