The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-604-1439, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5340-01-604-1439 |
| Primary Part Number | 556-7106779-89 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Width Across Flats | 1.850 INCHES NOMINAL IN |
| Length | 2.310 INCHES NOMINAL IN |
| Style Designator | INTERNALLY THREADED FULL LENGTH |
| Cross-Sectional Shape | HEXAGON |
| Material | COPPER ALLOY INSERT |
| Hole Quantity Perpendicular to Axis | 1 |
| 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 |
|---|---|
| 556-7106779-89 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| H792-8002-89 | 5/2 Secondary reference U.S. Government activity |
NSN 5340-01-604-1439 is a Standoff,threaded,spacing, manufactured by Naval Sea Systems Command, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-604-1439 has 1 manufacturer part number on file: 556-7106779-89 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 5342-01-734-0939. Verify interchangeability with system specifications before substitution.
Key specifications for 556-7106779-89: Width Across Flats: 1.850 INCHES NOMINAL IN; Length: 2.310 INCHES NOMINAL IN; Style Designator: INTERNALLY THREADED FULL LENGTH; Cross-Sectional Shape: HEXAGON. 6 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.