The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-605-1683, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-605-1683 |
| Primary Part Number | 12540524-3 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Length | 1.350 INCHES NOMINAL IN |
| End Radius | 0.875 INCHES NOMINAL IN |
| Thread Length | 0.580 INCHES NOMINAL RIGHT INTERNAL IN |
| Style Designator | PROJECTION ONE END LEFT INTERNAL THREAD |
| Diameter | 1.750 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND RIGHT INTERNAL |
| Nominal Thread Size | 0.250 INCHES RIGHT INTERNAL IN |
| Cross-Sectional Shape | ROUND |
| Thread Class | 2A RIGHT INTERNAL A |
| Thread Quantity Per Inch | 28 RIGHT INTERNAL |
| Material | STEEL INSERT |
| Right Projection Diameter | 1.750 INCHES NOMINAL IN |
| Thread Series Designator | UNF RIGHT INTERNAL |
| Right Projection Length | 4.650 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 |
| Part Number | Manufacturer |
|---|---|
| 12540524-3 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 12540524 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 5340-01-605-1683 is a Standoff,threaded,spacing, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-605-1683 has 1 manufacturer part number on file: 12540524-3 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12540524-3: Length: 1.350 INCHES NOMINAL IN; End Radius: 0.875 INCHES NOMINAL IN; Thread Length: 0.580 INCHES NOMINAL RIGHT INTERNAL IN; Style Designator: PROJECTION ONE END LEFT INTERNAL THREAD. 14 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.