The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-455-8028, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5340-01-455-8028 |
| Primary Part Number | 8105-A-256-10 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware |
| Status | ACTIVE |
| Width Across Flats | 0.1875 INCHES NOMINAL IN |
| Length | 0.4375 INCHES NOMINAL IN |
| Thread Length | 0.4375 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Style Designator | INTERNALLY THREADED FULL LENGTH |
| Thread Direction | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| Nominal Thread Size | 0.0860 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Cross-Sectional Shape | HEXAGON |
| Surface Treatment | CHROMATE STANDOFF |
| Thread Class | 2B LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Quantity Per Inch | 56 LEFT INTERNAL (INCLUDES THRU THREAD) |
| Material | ALUMINUM STANDOFF |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 8105-A-256-10 PRIMARY | Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware (USA) |
| Reference | Meaning |
|---|---|
| 8105-A-256-10 | 5/9 Secondary reference New Haven Mfg Corp Amatom Electronic Hardware Div |
NSN 5340-01-455-8028 is a Standoff,threaded,spacing, manufactured by Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-455-8028 has 1 manufacturer part number on file: 8105-A-256-10 (Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware).
Key specifications for 8105-A-256-10: Width Across Flats: 0.1875 INCHES NOMINAL IN; Length: 0.4375 INCHES NOMINAL IN; Thread Length: 0.4375 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN; Style Designator: INTERNALLY THREADED FULL LENGTH. 12 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.