The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-593-0987, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Emhart Industries Amatom Electronics Hardware Div. Government technical data includes 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-593-0987 |
| Primary Part Number | 8787-SS-2520 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Emhart Industries Amatom Electronics Hardware Div |
| Status | ACTIVE |
| Width Across Flats | 0.500 INCHES NOMINAL IN |
| Length | 6.000 INCHES NOMINAL IN |
| Thread Length | 0.562 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Thread Length | 0.562 INCHES NOMINAL RIGHT INTERNAL IN |
| Style Designator | LEFT INTERNAL AND RIGHT INTERNAL THREADS |
| Material Document and Classification | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Direction | RIGHT-HAND RIGHT INTERNAL |
| Nominal Thread Size | 0.250 INCHES RIGHT INTERNAL IN |
| Nominal Thread Size | 0.250 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Cross-Sectional Shape | HEXAGON |
| Thread Class | 2B LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Class | 2B RIGHT INTERNAL |
| Thread Quantity Per Inch | 20 LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Quantity Per Inch | 20 RIGHT INTERNAL |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) RIGHT INTERNAL |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 8787-SS-2520 PRIMARY | Emhart Industries Amatom Electronics Hardware Div (USA) |
| Reference | Meaning |
|---|---|
| 8787-SS-2520 | 5/9 Secondary reference Amatom Inc |
NSN 5340-01-593-0987 is a Standoff,threaded,spacing, manufactured by Emhart Industries Amatom Electronics Hardware Div, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-593-0987 has 1 manufacturer part number on file: 8787-SS-2520 (Emhart Industries Amatom Electronics Hardware Div).
Key specifications for 8787-SS-2520: Width Across Flats: 0.500 INCHES NOMINAL IN; Length: 6.000 INCHES NOMINAL IN; Thread Length: 0.562 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN; Thread Length: 0.562 INCHES NOMINAL RIGHT INTERNAL IN. 18 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.