The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-079-8142, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Lyn-Tron, Inc. Dba Lyn-Tron Inc. 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-079-8142 |
| Primary Part Number | AL6921B-0.125-12 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Lyn-Tron, Inc. Dba Lyn-Tron Inc |
| Status | ACTIVE |
| Width Across Flats | 0.250 INCHES NOMINAL IN |
| Length | 0.125 INCHES NOMINAL IN |
| Style Designator | PROJECTION ONE END LEFT INTERNAL THREAD |
| Cross-Sectional Shape | HEXAGON |
| 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 |
|---|---|
| AL6921B-0.125-12 PRIMARY | Lyn-Tron, Inc. Dba Lyn-Tron Inc (USA) |
| Reference | Meaning |
|---|---|
| 532352-27 | 5/2 Secondary reference U.S. Government activity |
| 9624B-A-0440-1B | 5/9 Secondary reference Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware |
| 9624B-A-0440-1B | 5/9 Secondary reference New Haven Mfg Corp Amatom Electronic Hardware Div |
| NAS1830A03B02 | 5/9 Secondary reference U.S. Government activity |
| SM-C-968351-1 | 5/9 Secondary reference U.S. Government activity |
| SS252-6D-12 | C/1 Advisory reference — outside the item-of-supply concept Unicorp. |
NSN 5340-01-079-8142 is a Standoff,threaded,spacing, manufactured by Lyn-Tron, Inc. Dba Lyn-Tron Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-079-8142 has 1 manufacturer part number on file: AL6921B-0.125-12 (Lyn-Tron, Inc. Dba Lyn-Tron Inc).
Key specifications for AL6921B-0.125-12: Width Across Flats: 0.250 INCHES NOMINAL IN; Length: 0.125 INCHES NOMINAL IN; Style Designator: PROJECTION ONE END LEFT INTERNAL THREAD; Cross-Sectional Shape: HEXAGON. 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.