The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-508-5422, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Accurate Screw Machine Corp Div Accurate Screw Machine Corporation. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-508-5422 |
| Primary Part Number | 14310-H-SS-4.563-LSS-12 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Accurate Screw Machine Corp Div Accurate Screw Machine Corporation |
| Status | ACTIVE |
| Width Across Flats | 0.500 INCHES NOMINAL IN |
| Length | 4.563 INCHES NOMINAL IN |
| Thread Length | 0.500 INCHES NOMINAL RIGHT INTERNAL IN |
| Style Designator | LEFT INTERNAL AND RIGHT EXTERNAL THREAD |
| Thread Direction | RIGHT-HAND RIGHT INTERNAL |
| Thread Direction | RIGHT-HAND LEFT EXTERNAL |
| Nominal Thread Size | 0.250 INCHES RIGHT INTERNAL IN |
| Nominal Thread Size | 0.250 INCHES LEFT EXTERNAL IN |
| Cross-Sectional Shape | HEXAGON |
| Thread Quantity Per Inch | 20 RIGHT INTERNAL |
| Thread Quantity Per Inch | 20 LEFT EXTERNAL |
| Material | STEEL CORROSION RESISTING OVERALL |
| Right Projection Diameter | 0.250 INCHES NOMINAL IN |
| Right Projection Length | 0.500 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 |
|---|---|
| 14310-H-SS-4.563-LSS-12 | Accurate Screw Machine Corp Div Accurate Screw Machine Corporation (USA) |
| Reference | Meaning |
|---|---|
| 14310HLSS-4.563-12 | 3/9 Design control — primary reference Accurate Screw Machine Corp Div Accurate Screw Machine Corporation |
NSN 5340-01-508-5422 is a Standoff,threaded,spacing, manufactured by Accurate Screw Machine Corp Div Accurate Screw Machine Corporation, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-508-5422 has 1 manufacturer part number on file: 14310-H-SS-4.563-LSS-12 (Accurate Screw Machine Corp Div Accurate Screw Machine Corporation).
Key specifications for 14310-H-SS-4.563-LSS-12: Width Across Flats: 0.500 INCHES NOMINAL IN; Length: 4.563 INCHES NOMINAL IN; Thread Length: 0.500 INCHES NOMINAL RIGHT INTERNAL IN; Style Designator: LEFT INTERNAL AND RIGHT EXTERNAL THREAD. 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.