The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-228-3391, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Alliant Techsystems Operations Llc Div Defense Electronic Systems. Government technical data includes 5 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-228-3391 |
| Primary Part Number | 2680133-302 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Alliant Techsystems Operations Llc Div Defense Electronic Systems |
| Status | ACTIVE |
| Width Across Flats | 0.246 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN |
| Length | 1.745 INCHES MINIMUM AND 1.755 INCHES MAXIMUM IN |
| Style Designator | LEFT INTERNAL AND RIGHT INTERNAL THREADS |
| Specification/standard Data | 80205-NAS1831 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| 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 |
|---|---|
| 2680133-302 | Alliant Techsystems Operations Llc Div Defense Electronic Systems (USA) |
| Reference | Meaning |
|---|---|
| 8231-SS0440 | 5/9 Secondary reference New Haven Mfg Corp Amatom Electronic Hardware Div |
| NAS1831C4B28 | 3/2 Design control — primary reference U.S. Government activity |
| 8231-SS0440 | C/1 Advisory reference — outside the item-of-supply concept Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware |
| NAS1831 | 3/1 Design control — primary reference U.S. Government activity |
NSN 5340-01-228-3391 is a Standoff,threaded,spacing, manufactured by Alliant Techsystems Operations Llc Div Defense Electronic Systems, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-228-3391 has 1 manufacturer part number on file: 2680133-302 (Alliant Techsystems Operations Llc Div Defense Electronic Systems).
Key specifications for 2680133-302: Width Across Flats: 0.246 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN; Length: 1.745 INCHES MINIMUM AND 1.755 INCHES MAXIMUM IN; Style Designator: LEFT INTERNAL AND RIGHT INTERNAL THREADS; Specification/standard Data: 80205-NAS1831 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD. 5 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.