The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-237-2905, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-237-2905 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Width Across Flats | 0.309 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN |
| Length | 3.245 INCHES MINIMUM AND 3.255 INCHES MAXIMUM IN |
| Style Designator | LEFT INTERNAL AND RIGHT INTERNAL THREADS |
| Specification/standard Data | 80250-NAS1831 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Cross-Sectional Shape | HEXAGON |
| 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 |
|---|---|
| NAS1831C5C52 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1831 | 3/1 Design control — primary reference U.S. Government activity |
NSN 5340-01-237-2905 is a Standoff,threaded,spacing, classified under FSC 5340, Hardware, Commercial. Status: active.
Key specifications for 5340-01-237-2905: Width Across Flats: 0.309 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN; Length: 3.245 INCHES MINIMUM AND 3.255 INCHES MAXIMUM IN; Style Designator: LEFT INTERNAL AND RIGHT INTERNAL THREADS; Specification/standard Data: 80250-NAS1831 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD. 5 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.