The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-235-3503, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Astronautics Corporation of America. Government technical data includes 7 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 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 | 5340-01-235-3503 |
| Primary Part Number | 128416 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Astronautics Corporation of America |
| Status | ACTIVE |
| Width Across Flats | 0.220 INCHES NOMINAL IN |
| Length | 0.109 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN |
| Thread Length | 0.125 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Thread Length | 0.094 INCHES NOMINAL RIGHT EXTERNAL IN |
| Material Document and Classification | ASTM A582 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A484 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape | HEXAGON |
| Material | STEEL COMP 203EZ OR STEEL CORROSION RESISTING OVERALL |
| 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 |
|---|---|
| 128416 PRIMARY | Astronautics Corporation of America (USA) |
NSN 5340-01-235-3503 is a Standoff,threaded,spacing, manufactured by Astronautics Corporation of America, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-235-3503 has 1 manufacturer part number on file: 128416 (Astronautics Corporation of America).
1 possible match (shared part number, not a government interchangeability claim): 5930-01-319-9653. Verify interchangeability with system specifications before substitution.
Key specifications for 128416: Width Across Flats: 0.220 INCHES NOMINAL IN; Length: 0.109 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN; Thread Length: 0.125 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN; Thread Length: 0.094 INCHES NOMINAL RIGHT EXTERNAL IN. 7 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.