The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-451-0757, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-451-0757 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Length | 3.7500 INCHES NOMINAL IN |
| Thread Length | 0.4700 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Thread Length | 0.4700 INCHES NOMINAL RIGHT INTERNAL IN |
| Style Designator | LEFT INTERNAL AND RIGHT INTERNAL THREADS |
| Material Document and Classification | QQ-A-225/9 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.5000 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Direction | RIGHT-HAND RIGHT INTERNAL |
| Nominal Thread Size | 0.1640 INCHES RIGHT INTERNAL IN |
| Nominal Thread Size | 0.1640 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Cross-Sectional Shape | ROUND |
| Thread Class | 3B LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Class | 3B RIGHT INTERNAL |
| Thread Quantity Per Inch | 38 LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Quantity Per Inch | 38 RIGHT INTERNAL |
| Material | ALUMINUM ALLOY 7075 OVERALL |
| Thread Series Designator | UNJC LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Series Designator | UNJC RIGHT INTERNAL |
| 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 |
| Reference | Meaning |
|---|---|
| DAA7252D728-007 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-01-451-0757 is a Standoff,threaded,spacing, classified under FSC 5340, Hardware, Commercial. Status: active.
Key specifications for 5340-01-451-0757: Length: 3.7500 INCHES NOMINAL IN; Thread Length: 0.4700 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN; Thread Length: 0.4700 INCHES NOMINAL RIGHT INTERNAL IN; Style Designator: LEFT INTERNAL AND RIGHT INTERNAL THREADS. 18 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.