The Standoff,threaded,spacing, cataloged under National Stock Number 5340-00-411-6545, 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 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-411-6545 |
| Primary Part Number | 565448 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Raytheon Company |
| Status | ACTIVE |
| Length | 0.750 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416, TYPE 1, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | INTERNALLY THREADED FULL LENGTH |
| Material Document and Classification | QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.250 INCHES NOMINAL IN |
| Cross-Sectional Shape | ROUND |
| Surface Treatment | CADMIUM OVERALL |
| Material | COPPER ALLOY 360 OVERALL |
| 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 |
|---|---|
| 565448 | Raytheon Company (USA) |
| 1550-G | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| 565448 | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| 565448 | 5/9 Secondary reference Raytheon Company Div Corp |
| 1550-G | 5/9 Secondary reference Litton Systems Inc. Div Navigation Systems Division |
| 1550G | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-00-411-6545 is a Standoff,threaded,spacing, manufactured by Raytheon Company, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-411-6545 has 3 manufacturer part numbers on file: 565448 (Raytheon Company), 1550-G (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 565448 (Raytheon Company Dba Raytheon Co).
2 possible matches (shared part number, not a government interchangeability claim): 5310-00-978-7956, 8430-01-499-1387. Verify interchangeability with system specifications before substitution.
Key specifications for 565448: Length: 0.750 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416, TYPE 1, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Style Designator: INTERNALLY THREADED FULL LENGTH; Material Document and Classification: QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 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.