The Insert,screw Thread, cataloged under National Stock Number 5325-01-394-2418, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Avk Industries Products Inc. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-394-2418 |
| Primary Part Number | ALS7-518-312 |
| Item Name | Insert,screw Thread |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Avk Industries Products Inc |
| Status | ACTIVE |
| Length | 1.440 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.430 INCHES NOMINAL IN |
| Insert Size | 5/16-18 |
| Style Designator | SERRATED |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.312 INCHES IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 1010 OR STEEL COMP 1006 OVERALL |
| 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 |
|---|---|
| ALS7-518-312 PRIMARY | Avk Industries Products Inc (USA) |
| ITR31-312SD CSI | Bollhoff Inc. Dba Bollhoff Rivnut Inc (USA) |
| Reference | Meaning |
|---|---|
| ALS7-518-312 | 5/9 Secondary reference Delta Eco |
| ITR31-312SD CSI | 5/9 Secondary reference Bollhoff Rivnut., Inc. Fastening and Assembly Technology Dba Bollhoff Rivnut., Inc. Div Bollhoff Rivnut., Inc. |
NSN 5325-01-394-2418 is a Insert,screw Thread, manufactured by Avk Industries Products Inc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-394-2418 has 2 manufacturer part numbers on file: ALS7-518-312 (Avk Industries Products Inc), ITR31-312SD CSI (Bollhoff Inc. Dba Bollhoff Rivnut Inc).
Key specifications for ALS7-518-312: Length: 1.440 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.430 INCHES NOMINAL IN; Insert Size: 5/16-18. 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.