The Insert,screw Thread, cataloged under National Stock Number 5325-00-229-0261, 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 8 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-229-0261 |
| Primary Part Number | KNYDJ-4 |
| Item Name | Insert,screw Thread |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | ACTIVE |
| Width Across Flats | 0.759 INCHES MINIMUM AND 0.763 INCHES MAXIMUM IN |
| Length | 0.667 INCHES NOMINAL IN |
| Flange Thickness | 0.205 INCHES MAXIMUM IN |
| Insert Size | 0.625-18 UNF CLASS 3A A |
| Style Designator | FLANGE |
| Material Document and Classification | QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 303 OVERALL |
| 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 |
|---|---|
| KNYDJ-4 PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
| KNYDJ4S | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
| Reference | Meaning |
|---|---|
| KNYDJ4 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5325-00-229-0261 is a Insert,screw Thread, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-229-0261 has 2 manufacturer part numbers on file: KNYDJ-4 (Howmet Global Fastening Systems Inc. Div Tridair Products), KNYDJ4S (Howmet Global Fastening Systems Inc. Div Tridair Products).
Key specifications for KNYDJ-4: Width Across Flats: 0.759 INCHES MINIMUM AND 0.763 INCHES MAXIMUM IN; Length: 0.667 INCHES NOMINAL IN; Flange Thickness: 0.205 INCHES MAXIMUM IN; Insert Size: 0.625-18 UNF CLASS 3A A. 8 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.