The Insert,screw Thread, cataloged under National Stock Number 5325-00-899-2101, 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 10 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-899-2101 |
| Primary Part Number | KNCL0256 |
| Item Name | Insert,screw Thread |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | ACTIVE |
| Length | 0.120 INCHES MINIMUM IN |
| Surface Treatment Document and Classification | MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Insert Size | 0.164-32 UNC-2A A |
| Style Designator | KEYLOCK |
| Features Provided | INDIVIDUALLY KEYED |
| Nominal Thread Size | 0.086 INCHES IN |
| Full Internal Thread Length | 0.120 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Quantity Per Inch | 56 |
| 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 |
|---|---|
| KNCL0256 PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
| 10153080-1 | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| KNCL0256J | 5/9 Secondary reference Howmet Global Fastening Systems Inc. Div Tridair Products |
| 860554-4 | 5/9 Secondary reference Litton Systems Inc. Div Navigation Systems Division |
| 860554-4 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
NSN 5325-00-899-2101 is a Insert,screw Thread, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-899-2101 has 2 manufacturer part numbers on file: KNCL0256 (Howmet Global Fastening Systems Inc. Div Tridair Products), 10153080-1 (Us Army Aviation and Missile Command).
Key specifications for KNCL0256: Length: 0.120 INCHES MINIMUM IN; Surface Treatment Document and Classification: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Insert Size: 0.164-32 UNC-2A A; Style Designator: KEYLOCK. 10 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.