The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-389-1878, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 23 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5340-01-389-1878 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Length | 0.406 INCHES NOMINAL IN |
| Distance From Centerline to Flat | 0.024 INCHES NOMINAL IN |
| Cross-Sectional Width | 0.310 INCHES NOMINAL IN |
| Thread Length | 0.160 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Thread Length | 0.224 INCHES NOMINAL RIGHT EXTERNAL IN |
| Style Designator | LEFT INTERNAL AND RIGHT EXTERNAL THREAD |
| Material Document and Classification | AMS5610 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Length | 0.700 INCHES NOMINAL IN |
| Distance From Centerline to Second Flat | 0.024 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND RIGHT EXTERNAL |
| Thread Direction | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| Nominal Thread Size | 0.138 INCHES RIGHT EXTERNAL IN |
| Nominal Thread Size | 0.216 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Cross-Sectional Shape | RECTANGULAR |
| Thread Class | 2B RIGHT EXTERNAL |
| Thread Class | 2B LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Quantity Per Inch | 28 RIGHT EXTERNAL |
| Thread Quantity Per Inch | 28 LEFT INTERNAL (INCLUDES THRU THREAD) |
| Material | STEEL COMP 416SE OVERALL |
| Right Projection Diameter | 0.094 INCHES NOMINAL IN |
| Thread Series Designator | UNF RIGHT EXTERNAL |
| Thread Series Designator | UNF LEFT INTERNAL (INCLUDES THRU THREAD) |
| Right Projection Length | 0.294 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 969C831-1 | 3/2 Design control — primary reference U.S. Government activity |
| 969C831-1 | 5/9 Secondary reference U.S. Government activity |
NSN 5340-01-389-1878 is a Standoff,threaded,spacing, classified under FSC 5340, Hardware, Commercial. Status: active.
Key specifications for 5340-01-389-1878: Length: 0.406 INCHES NOMINAL IN; Distance From Centerline to Flat: 0.024 INCHES NOMINAL IN; Cross-Sectional Width: 0.310 INCHES NOMINAL IN; Thread Length: 0.160 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN. 23 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.