The Insert,screw Thread, cataloged under National Stock Number 5325-00-522-8595, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Div Tridair Products. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5325-00-522-8595 |
| Primary Part Number | BX0440 |
| Item Name | Insert,screw Thread |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | ACTIVE |
| Length | 0.310 INCHES NOMINAL IN |
| Insert Size | 0.200 IN. OD IN |
| Nominal Thread Size | 0.112 INCHES IN |
| Full Internal Thread Length | 0.160 INCHES NOMINAL IN |
| Thread Class | 3B |
| Thread Quantity Per Inch | 40 |
| 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 |
| Part Number | Manufacturer |
|---|---|
| BX0440 PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
| Reference | Meaning |
|---|---|
| 154513-2 | 7/2 Vendor item drawing reference Raytheon Company Dba Raytheon Co |
| 154513-2 | 5/9 Secondary reference Raytheon Company Div Corp |
NSN 5325-00-522-8595 is a Insert,screw Thread, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-522-8595 has 1 manufacturer part number on file: BX0440 (Howmet Global Fastening Systems Inc. Div Tridair Products).
2 possible matches (shared part number, not a government interchangeability claim): 5310-00-824-9912, 6220-01-180-0028. Verify interchangeability with system specifications before substitution.
Key specifications for BX0440: Length: 0.310 INCHES NOMINAL IN; Insert Size: 0.200 IN. OD IN; Nominal Thread Size: 0.112 INCHES IN; Full Internal Thread Length: 0.160 INCHES NOMINAL IN. 7 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.