The Insert,screw Thread, cataloged under National Stock Number 5325-01-463-1319, 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 12 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5325-01-463-1319 |
| Primary Part Number | KNHM12X1.75 |
| Item Name | Insert,screw Thread |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | ACTIVE |
| Thread Tolerance Class | 5H INTERNAL |
| Length | 25.0 MILLIMETERS NOMINAL MM |
| Thread Pitch in Millimeters | 12.00 |
| Thread Length | 18.5 MILLIMETERS NOMINAL MM |
| Insert Size | M18 X 1.5 |
| Style Designator | KEYLOCK |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.7 MILLIMETERS MM |
| Full Internal Thread Length | 1.8 MILLIMETERS NOMINAL MM |
| Surface Treatment | PHOSPHATE ZINC OVERALL |
| Material | STEEL OVERALL |
| Thread Series Designator | ISO M |
| 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 |
|---|---|
| KNHM 12X1.75 | Rbsl Washington (GBR) |
| KNHM12X1-75 | Cefa (FRA) |
| GD00659955 | General Dynamics United Kingdom Ltd (GBR) |
| KNHM12X1.75 PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
| KNHM12X1,75 | Howmet Fixations Simmonds SAS (FRA) |
| Reference | Meaning |
|---|---|
| KNHM12X1,75 | 5/9 Secondary reference Alcoa Fixations Simmonds SAS |
NSN 5325-01-463-1319 is a Insert,screw Thread, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-463-1319 has 5 manufacturer part numbers on file: KNHM 12X1.75 (Rbsl Washington), KNHM12X1-75 (Cefa), GD00659955 (General Dynamics United Kingdom Ltd), KNHM12X1.75 (Howmet Global Fastening Systems Inc. Div Tridair Products), KNHM12X1,75 (Howmet Fixations Simmonds SAS).
1 possible match (shared part number, not a government interchangeability claim): 5325-01-732-2748. Verify interchangeability with system specifications before substitution.
Key specifications for KNHM12X1.75: Thread Tolerance Class: 5H INTERNAL; Length: 25.0 MILLIMETERS NOMINAL MM; Thread Pitch in Millimeters: 12.00; Thread Length: 18.5 MILLIMETERS NOMINAL MM. 12 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.