The Insert,screw Thread, cataloged under National Stock Number 5325-00-079-9957, 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 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5325-00-079-9957 |
| Primary Part Number | KNCC0256J |
| Item Name | Insert,screw Thread |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | ACTIVE |
| Length | 0.100 INCHES NOMINAL IN |
| Insert Size | 0.138-40 NF 3A A |
| Style Designator | KEYLOCK |
| Full Internal Thread Length | 0.085 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5325-00-079-9957 is a Insert,screw Thread, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-079-9957 has 2 manufacturer part numbers on file: KNCC0256J (Howmet Global Fastening Systems Inc. Div Tridair Products), 188979-1 (Raytheon Company Div Corp).
2 possible matches (shared part number, not a government interchangeability claim): 2920-00-737-6558, 1560-01-553-8235. Verify interchangeability with system specifications before substitution.
Key specifications for KNCC0256J: Length: 0.100 INCHES NOMINAL IN; Insert Size: 0.138-40 NF 3A A; Style Designator: KEYLOCK; Full Internal Thread Length: 0.085 INCHES NOMINAL IN. 5 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.