The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-055-3366, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5340-01-055-3366 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Width Across Flats | 0.248 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN |
| Length | 0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN |
| Style Designator | INTERNALLY THREADED FULL LENGTH |
| Material Document and Classification | QQ-B-626, COMP. 22 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape | HEXAGON |
| Surface Treatment | ZINC OVERALL |
| Material | COPPER ALLOY 360 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 |
| Reference | Meaning |
|---|---|
| 8836 | 3/2 Design control — primary reference U.S. Government activity |
| 8836 | 5/9 Secondary reference U.S. Government activity |
NSN 5340-01-055-3366 is a Standoff,threaded,spacing, classified under FSC 5340, Hardware, Commercial. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 6730-01-061-6837, 5120-01-082-3670. Verify interchangeability with system specifications before substitution.
Key specifications for 5340-01-055-3366: Width Across Flats: 0.248 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN; Length: 0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN; Style Designator: INTERNALLY THREADED FULL LENGTH; Material Document and Classification: QQ-B-626, COMP. 22 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 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.