The Standoff,threaded,spacing, cataloged under National Stock Number 5340-00-457-9255, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-00-457-9255 |
| Primary Part Number | 10190484 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Smaller Groove Diameter | 0.314 INCHES MINIMUM AND 0.324 INCHES MAXIMUM IN |
| Width Across Flats | 0.614 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN |
| Length | 0.625 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-C-320, TYPE 1, CLASS 2D FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Groove Diameter | 0.374 INCHES NOMINAL IN |
| End Radius | 0.156 INCHES NOMINAL IN |
| Thread Length | 0.437 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Distance From End to Groove | 0.061 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN |
| Style Designator | GROOVED W/ LEFT INTERNAL AND RIGHT EXTERNAL THREAD |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape | HEXAGON |
| Smaller Groove Radius | 0.010 INCHES NOMINAL IN |
| Surface Treatment | CHROMIUM OVERALL |
| Material | STEEL COMP 630 OVERALL |
| Groove Width | 0.125 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 |
|---|---|
| 10190484 PRIMARY | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| 457-5689 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5340-00-457-9255 is a Standoff,threaded,spacing, manufactured by Us Army Aviation and Missile Command, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-457-9255 has 1 manufacturer part number on file: 10190484 (Us Army Aviation and Missile Command).
Key specifications for 10190484: Smaller Groove Diameter: 0.314 INCHES MINIMUM AND 0.324 INCHES MAXIMUM IN; Width Across Flats: 0.614 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN; Length: 0.625 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-C-320, TYPE 1, CLASS 2D FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 15 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.