The Standoff,threaded,spacing, cataloged under National Stock Number 5340-00-181-1689, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-181-1689 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Smaller Groove Diameter | 0.095 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN |
| Width Across Flats | 0.188 INCHES NOMINAL IN |
| Length | 0.046 INCHES NOMINAL IN |
| Groove Diameter | 0.106 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN |
| Distance From End to Groove | 0.214 INCHES NOMINAL IN |
| Style Designator | PROJECTION BOTH ENDS RIGHT EXTERNAL THREAD |
| Distance From End to Smaller Groove | 0.030 INCHES NOMINAL IN |
| Smaller Groove Width | 0.017 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN |
| Cross-Sectional Shape | HEXAGON |
| Groove Width | 0.020 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 |
| Unit of Issue | EA |
| Reference | Meaning |
|---|---|
| 53528-3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-00-181-1689 is a Standoff,threaded,spacing, classified under FSC 5340, Hardware, Commercial. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6610-00-887-7011. Verify interchangeability with system specifications before substitution.
Key specifications for 5340-00-181-1689: Smaller Groove Diameter: 0.095 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN; Width Across Flats: 0.188 INCHES NOMINAL IN; Length: 0.046 INCHES NOMINAL IN; Groove Diameter: 0.106 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN. 10 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.