The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-005-4242, 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 4 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-005-4242 |
| Primary Part Number | 9518-B-A-0256 |
| 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 |
| Length | 0.125 INCHES NOMINAL IN |
| Style Designator | PROJECTION ONE END LEFT INTERNAL THREAD |
| Diameter | 0.188 INCHES NOMINAL IN |
| Cross-Sectional Shape | ROUND |
| 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 |
|---|---|
| 9518-B-A-0256 PRIMARY | Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware (USA) |
| Reference | Meaning |
|---|---|
| 9518-B-A-0256 | 5/9 Secondary reference New Haven Mfg Corp Amatom Electronic Hardware Div |
| 803627 | 5/9 Secondary reference The Boeing Company Div Defense |
| 1202332-25 | 5/9 Secondary reference Alliant Techsystems Operations Llc Div Defense Electronic Systems |
| 803627 | 5/9 Secondary reference Nai Technologies Inc |
NSN 5340-01-005-4242 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 5340-01-005-4242 has 1 manufacturer part number on file: 9518-B-A-0256 (Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware).
1 possible match (shared part number, not a government interchangeability claim): 2540-01-513-9479. Verify interchangeability with system specifications before substitution.
Key specifications for 9518-B-A-0256: Length: 0.125 INCHES NOMINAL IN; Style Designator: PROJECTION ONE END LEFT INTERNAL THREAD; Diameter: 0.188 INCHES NOMINAL IN; Cross-Sectional Shape: ROUND. 4 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.