The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-370-5568, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 24 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-370-5568 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Width Across Flats | 6.35 MILLIMETERS NOMINAL MM |
| Thread Tolerance Class | 6G EXTERNAL RIGHT EXTERNAL G |
| Thread Tolerance Class | 6H INTERNAL LEFT INTERNAL (INCLUDES THRU THREAD) |
| Length | 17.25 MILLIMETERS MINIMUM AND 17.75 MILLIMETERS MAXIMUM MM |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE STANDOFF |
| Thread Pitch in Millimeters | 0.5 LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Pitch in Millimeters | 0.5 RIGHT EXTERNAL |
| Thread Length | 4.25 MILLIMETERS MINIMUM AND 4.75 MILLIMETERS MAXIMUM RIGHT EXTERNAL MM |
| Thread Length | 5.0 MILLIMETERS MINIMUM LEFT INTERNAL (INCLUDES THRU THREAD) MM |
| Style Designator | LEFT INTERNAL AND RIGHT EXTERNAL THREAD |
| Thread Pitch Diameters | +2.580 TO 2.655 MILLIMETERS RIGHT EXTERNAL MM |
| Thread Pitch Diameters | +2.675 TO 2.775 MILLIMETERS LEFT INTERNAL (INCLUDES THRU THREAD) MM |
| Material Document and Classification | QQ-S-764 COND A FED SPEC SINGLE MATERIAL RESPONSE STANDOFF |
| Thread Direction | RIGHT-HAND RIGHT EXTERNAL |
| Thread Direction | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| Nominal Thread Size | 2.927 MILLIMETERS LEFT INTERNAL (INCLUDES THRU THREAD) MM |
| Nominal Thread Size | 2.927 MILLIMETERS RIGHT EXTERNAL MM |
| Cross-Sectional Shape | HEXAGON |
| Surface Treatment | PASSIVATE STANDOFF |
| Material | STEEL COMP 303 STANDOFF |
| Right Projection Diameter | 2.927 MILLIMETERS NOMINAL MM |
| Thread Series Designator | M RIGHT EXTERNAL |
| Thread Series Designator | M LEFT INTERNAL (INCLUDES THRU THREAD) |
| Right Projection Length | 4.25 MILLIMETERS MINIMUM AND 4.75 MILLIMETERS MAXIMUM MM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Reference | Meaning |
|---|---|
| A3013578-5 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-01-370-5568 is a Standoff,threaded,spacing, classified under FSC 5340, Hardware, Commercial. Status: active.
Key specifications for 5340-01-370-5568: Width Across Flats: 6.35 MILLIMETERS NOMINAL MM; Thread Tolerance Class: 6G EXTERNAL RIGHT EXTERNAL G; Thread Tolerance Class: 6H INTERNAL LEFT INTERNAL (INCLUDES THRU THREAD); Length: 17.25 MILLIMETERS MINIMUM AND 17.75 MILLIMETERS MAXIMUM MM. 24 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.