The Insert,screw Thread, cataloged under National Stock Number 5325-01-575-5523, 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 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-575-5523 |
| Primary Part Number | ALS4-428-165 |
| Item Name | Insert,screw Thread |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Avk Industries Products Inc |
| Status | ACTIVE |
| Thread Length | 0.580 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Surface Treatment | CHROMATE ZINC OVERALL |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP M1010 OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| ALS4-428-165 | Arconic Fastening Sysyems (AUS) |
| ALS4-428-165 PRIMARY | Avk Industries Products Inc (USA) |
| 5DLS-428-165 | Stanley Engineered Fastening Infastech (australia) Pty Limited (AUS) |
| Reference | Meaning |
|---|---|
| 000993-980-1 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5325-01-575-5523 is a Insert,screw Thread, manufactured by Avk Industries Products Inc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-575-5523 has 3 manufacturer part numbers on file: ALS4-428-165 (Arconic Fastening Sysyems), ALS4-428-165 (Avk Industries Products Inc), 5DLS-428-165 (Stanley Engineered Fastening Infastech (australia) Pty Limited).
Key specifications for ALS4-428-165: Thread Length: 0.580 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.250 INCHES IN; Surface Treatment: CHROMATE ZINC OVERALL. 7 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.