The Threaded Standoff Assembly, cataloged under National Stock Number 5340-01-664-0848, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-664-0848 |
| Primary Part Number | 803-1648659 PC NO.41 |
| Item Name | Threaded Standoff Assembly |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Flange Diameter | 0.500 INCHES NOMINAL IN |
| Length | 1.1875 INCHES NOMINAL IN |
| Flange Thickness | 0.125 INCHES NOMINAL IN |
| Thread Length | 1.1875 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Style Designator | FLANGED |
| Thread Direction | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| Nominal Thread Size | 0.190 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Cross-Sectional Shape | ROUND |
| Component and Quantity | BARREL AND 0.750 INCH (NOM) LENGTH, 0.190 INCH (NOM) SCREW SIZE, CROSSCUT INSERT DRIVE SCREW IN |
| Thread Class | 2B LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Quantity Per Inch | 32 LEFT INTERNAL (INCLUDES THRU THREAD) |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) LEFT INTERNAL (INCLUDES THRU THREAD) |
| 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 |
|---|---|
| 803-1648659 PC NO.41 PRIMARY | Naval Sea Systems Command (USA) |
| 98975A253 | Mcmaster-Carr Supply Co (USA) |
NSN 5340-01-664-0848 is a Threaded Standoff Assembly, manufactured by Naval Sea Systems Command, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-664-0848 has 2 manufacturer part numbers on file: 803-1648659 PC NO.41 (Naval Sea Systems Command), 98975A253 (Mcmaster-Carr Supply Co).
Key specifications for 803-1648659 PC NO.41: Flange Diameter: 0.500 INCHES NOMINAL IN; Length: 1.1875 INCHES NOMINAL IN; Flange Thickness: 0.125 INCHES NOMINAL IN; Thread Length: 1.1875 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN. 13 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.