The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-722-8655, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is W J Roberts Co Inc. Government technical data includes 14 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 | 5340-01-722-8655 |
| Primary Part Number | 25C450H50AP |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | W J Roberts Co Inc |
| Status | ACTIVE |
| Length | 4.5 INCHES NOMINAL IN |
| Thread Length | 0.625 INCHES NOMINAL RIGHT INTERNAL IN |
| Style Designator | PROJECTION ONE END W/ RIGHT EXTERNAL THREAD |
| Material Document and Classification | ASTM B211 ASSN STD SINGLE MATERIAL RESPONSE OR QQ-A-225/3 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND RIGHT EXTERNAL |
| Thread Direction | RIGHT-HAND RIGHT INTERNAL |
| Nominal Thread Size | 0.25 INCHES RIGHT EXTERNAL IN |
| Nominal Thread Size | 0.25 INCHES RIGHT INTERNAL IN |
| Cross-Sectional Shape | HEXAGON |
| Material | ALUMINUM ALLOY 2011 OVERALL |
| Right Projection Diameter | 0.25 INCHES NOMINAL IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) RIGHT EXTERNAL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) RIGHT INTERNAL |
| Right Projection Length | 0.50 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 |
|---|---|
| 25C450H50AP PRIMARY | W J Roberts Co Inc (USA) |
NSN 5340-01-722-8655 is a Standoff,threaded,spacing, manufactured by W J Roberts Co Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-722-8655 has 1 manufacturer part number on file: 25C450H50AP (W J Roberts Co Inc).
Key specifications for 25C450H50AP: Length: 4.5 INCHES NOMINAL IN; Thread Length: 0.625 INCHES NOMINAL RIGHT INTERNAL IN; Style Designator: PROJECTION ONE END W/ RIGHT EXTERNAL THREAD; Material Document and Classification: ASTM B211 ASSN STD SINGLE MATERIAL RESPONSE OR QQ-A-225/3 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 14 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.