The Standoff,hinged,threaded, cataloged under National Stock Number 5340-01-444-6597, 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 9 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-444-6597 |
| Primary Part Number | 120-6603509FNDPWY-A25 |
| Item Name | Standoff,hinged,threaded |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Length | 4.360 INCHES NOMINAL IN |
| Thread Length | 0.500 INCHES NOMINAL HOLE PERPENDICULAR TO AXIS IN |
| Style Designator | LEFT INTERNAL AND RIGHT INTERNAL THREADS |
| Diameter | 0.8745 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND HOLE PERPENDICULAR TO AXIS |
| Nominal Thread Size | 0.250 INCHES HOLE PERPENDICULAR TO AXIS IN |
| Cross-Sectional Shape | ROUND |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) HOLE PERPENDICULAR TO AXIS |
| 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 |
|---|---|
| 120-6603509FNDPWY-A25 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5340-01-444-6597 is a Standoff,hinged,threaded, manufactured by Naval Sea Systems Command, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-444-6597 has 1 manufacturer part number on file: 120-6603509FNDPWY-A25 (Naval Sea Systems Command).
Key specifications for 120-6603509FNDPWY-A25: Length: 4.360 INCHES NOMINAL IN; Thread Length: 0.500 INCHES NOMINAL HOLE PERPENDICULAR TO AXIS IN; Style Designator: LEFT INTERNAL AND RIGHT INTERNAL THREADS; Diameter: 0.8745 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN. 9 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.