The Insert,screw Thread, cataloged under National Stock Number 5325-01-628-5431, 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 10 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-628-5431 |
| Primary Part Number | AKS9-420-390 |
| Item Name | Insert,screw Thread |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Avk Industries Products Inc |
| Status | ACTIVE |
| Length | 0.810 INCHES MINIMUM AND 0.846 INCHES MAXIMUM IN |
| Insert Size | 0.390 |
| Style Designator | SLOTTED |
| Surface Treatment | TIN AND ZINC OVERALL |
| Thread Class | 2B |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 1010 AND STEEL COMP 1008 OVERALL |
| Distance From Fin to Insert Head | 0.380 INCHES MAXIMUM IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Slot Width | 0.3906 INCHES MINIMUM AND 0.3966 INCHES MAXIMUM IN |
| 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 |
|---|---|
| AKS9-420-390 PRIMARY | Avk Industries Products Inc (USA) |
| 12446871-21 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 12446871 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5325-01-628-5431 is a Insert,screw Thread, manufactured by Avk Industries Products Inc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-628-5431 has 3 manufacturer part numbers on file: AKS9-420-390 (Avk Industries Products Inc), 12446871-21 (U S Army Tank Automotive Command Amsta-Im-Mm), 12446871 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for AKS9-420-390: Length: 0.810 INCHES MINIMUM AND 0.846 INCHES MAXIMUM IN; Insert Size: 0.390; Style Designator: SLOTTED; Surface Treatment: TIN AND ZINC OVERALL. 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.