The Insert,screw Thread, cataloged under National Stock Number 5325-01-528-5590, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-528-5590 |
| Item Name | Insert,screw Thread |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Mounting Facility Diameter | 0.530 INCHES NOMINAL IN |
| Mounting Facility Quantity | 1 |
| Length | 0.720 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Mounting Method | UNTHREADED HOLE(S) |
| Thread Length | 0.370 INCHES NOMINAL IN |
| Insert Size | 0.530 IN. OD IN |
| Style Designator | BLIND |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.312 INCHES IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 1008 OR STEEL COMP 1010 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| AK515-518 | 3/2 Design control — primary reference U.S. Government activity |
| 17-1-6611-4 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5325-01-528-5590 is a Insert,screw Thread, classified under FSC 5325, Fastening Devices. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5325-01-545-9935. Verify interchangeability with system specifications before substitution.
Key specifications for 5325-01-528-5590: Mounting Facility Diameter: 0.530 INCHES NOMINAL IN; Mounting Facility Quantity: 1; Length: 0.720 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN; Mounting Method: UNTHREADED HOLE(S). 14 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.