The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-412-5461, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. Government technical data includes 20 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-412-5461 |
| Primary Part Number | A15P2520-1 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Width Across Flats | 0.500 INCHES NOMINAL IN |
| Length | 1.310 INCHES MINIMUM AND 1.316 INCHES MAXIMUM IN |
| Thread Length | 0.504 INCHES MAXIMUM RIGHT EXTERNAL IN |
| Thread Length | 0.620 INCHES MINIMUM LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Style Designator | LEFT INTERNAL AND RIGHT EXTERNAL THREAD |
| Material Document and Classification | AMS5659 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND RIGHT EXTERNAL |
| Thread Direction | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| Nominal Thread Size | 0.250 INCHES RIGHT EXTERNAL IN |
| Nominal Thread Size | 0.250 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Cross-Sectional Shape | HEXAGON |
| Thread Class | 3A RIGHT EXTERNAL A |
| Thread Class | 3B LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Quantity Per Inch | 28 RIGHT EXTERNAL |
| Thread Quantity Per Inch | 28 LEFT INTERNAL (INCLUDES THRU THREAD) |
| Material | STEEL CORROSION RESISTING OVERALL |
| Right Projection Diameter | 0.250 INCHES NOMINAL IN |
| Thread Series Designator | UNF LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) RIGHT EXTERNAL |
| Right Projection Length | 0.504 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 |
|---|---|
| A15P2520-1 PRIMARY | The Boeing Company (USA) |
NSN 5340-01-412-5461 is a Standoff,threaded,spacing, manufactured by The Boeing Company, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-412-5461 has 1 manufacturer part number on file: A15P2520-1 (The Boeing Company).
Key specifications for A15P2520-1: Width Across Flats: 0.500 INCHES NOMINAL IN; Length: 1.310 INCHES MINIMUM AND 1.316 INCHES MAXIMUM IN; Thread Length: 0.504 INCHES MAXIMUM RIGHT EXTERNAL IN; Thread Length: 0.620 INCHES MINIMUM LEFT INTERNAL (INCLUDES THRU THREAD) IN. 20 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.