The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-226-2997, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Raytheon Company. 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-226-2997 |
| Primary Part Number | 510656-1 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Raytheon Company |
| Status | ACTIVE |
| Right Counterbore Diameter | 0.090 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN |
| Left Counterbore Depth | 0.250 INCHES NOMINAL IN |
| Material Document and Classification | QQ-A-225/3-T3 FED SPEC SINGLE MATERIAL RESPONSE STANDOFF |
| Diameter | 0.219 INCHES NOMINAL IN |
| Right Counterbore Depth | 0.250 INCHES NOMINAL IN |
| Left Counterbore Diameter | 0.090 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN |
| Cross-Sectional Shape | SQUARE |
| Material | ALUMINUM ALLOY 2011 STANDOFF |
| 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 |
|---|---|
| 510656-1 PRIMARY | Raytheon Company (USA) |
NSN 5340-01-226-2997 is a Standoff,threaded,spacing, manufactured by Raytheon Company, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-226-2997 has 1 manufacturer part number on file: 510656-1 (Raytheon Company).
Key specifications for 510656-1: Right Counterbore Diameter: 0.090 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN; Left Counterbore Depth: 0.250 INCHES NOMINAL IN; Material Document and Classification: QQ-A-225/3-T3 FED SPEC SINGLE MATERIAL RESPONSE STANDOFF; Diameter: 0.219 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.