The Standoff,threaded,spacing, cataloged under National Stock Number 5340-00-455-5866, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 8 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5340-00-455-5866 |
| Primary Part Number | 8518154 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Left Counterbore Depth | 0.218 INCHES NOMINAL IN |
| Width Across Flats | 0.250 INCHES NOMINAL IN |
| Length | 0.594 INCHES NOMINAL IN |
| Groove Diameter | 0.100 INCHES NOMINAL IN |
| Style Designator | LEFT INTERNAL AND RIGHT EXTERNAL THREAD |
| Left Counterbore Diameter | 0.154 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN |
| Cross-Sectional Shape | HEXAGON |
| Groove Width | 0.062 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 |
| Part Number | Manufacturer |
|---|---|
| 8518154 PRIMARY | Us Army Aviation and Missile Command (USA) |
NSN 5340-00-455-5866 is a Standoff,threaded,spacing, manufactured by Us Army Aviation and Missile Command, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-455-5866 has 1 manufacturer part number on file: 8518154 (Us Army Aviation and Missile Command).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-724-1575. Verify interchangeability with system specifications before substitution.
Key specifications for 8518154: Left Counterbore Depth: 0.218 INCHES NOMINAL IN; Width Across Flats: 0.250 INCHES NOMINAL IN; Length: 0.594 INCHES NOMINAL IN; Groove Diameter: 0.100 INCHES NOMINAL IN. 8 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.