The Standoff,threaded,spacing, cataloged under National Stock Number 5340-00-159-3988, 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 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5340-00-159-3988 |
| Primary Part Number | 8124SS0440-7 |
| 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 | 0.188 INCHES NOMINAL IN |
| Length | 2.000 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OR MIL-F-14072, FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | LEFT INTERNAL AND RIGHT INTERNAL THREADS |
| Material Document and Classification | ASTM A581 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape | HEXAGON |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 8124SS0440-7 PRIMARY | Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware (USA) |
| C424 | Skyline Industries, Inc (USA) |
| Reference | Meaning |
|---|---|
| 532353-424 | 5/2 Secondary reference U.S. Government activity |
| 8124SS0440-7 | 5/9 Secondary reference New Haven Mfg Corp Amatom Electronic Hardware Div |
NSN 5340-00-159-3988 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 5340-00-159-3988 has 2 manufacturer part numbers on file: 8124SS0440-7 (Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware), C424 (Skyline Industries, Inc).
Key specifications for 8124SS0440-7: Width Across Flats: 0.188 INCHES NOMINAL IN; Length: 2.000 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OR MIL-F-14072, FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Style Designator: LEFT INTERNAL AND RIGHT INTERNAL THREADS. 8 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.