The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-279-7040, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Raytheon Company Dba Raytheon Co. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5340-01-279-7040 |
| Primary Part Number | 855543-2 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| Left Counterbore Depth | 0.125 INCHES NOMINAL IN |
| Width Across Flats | 0.312 INCHES NOMINAL IN |
| Length | 1.500 INCHES NOMINAL IN |
| Style Designator | INTERNALLY THREADED FULL LENGTH |
| Right Counterbore Depth | 0.125 INCHES NOMINAL IN |
| Left Counterbore Diameter | 0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Cross-Sectional Shape | RECTANGULAR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 855543-2 PRIMARY | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| 855543-2 | 5/9 Secondary reference Raytheon Company Div Corp |
NSN 5340-01-279-7040 is a Standoff,threaded,spacing, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-279-7040 has 1 manufacturer part number on file: 855543-2 (Raytheon Company Dba Raytheon Co).
Key specifications for 855543-2: Left Counterbore Depth: 0.125 INCHES NOMINAL IN; Width Across Flats: 0.312 INCHES NOMINAL IN; Length: 1.500 INCHES NOMINAL IN; Style Designator: INTERNALLY THREADED FULL LENGTH. 7 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.