The Screw,machine, cataloged under National Stock Number 5305-01-372-8214, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Alfa Laval Inc. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-372-8214 |
| Primary Part Number | 221172108 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Alfa Laval Inc |
| Status | ACTIVE |
| Head Height | 3.6 MILLIMETERS NOMINAL MM |
| Screw Surface Treatment | ZINC AND CHROMATE |
| Fastener Length | 13.0 MILLIMETERS NOMINAL MM |
| Thread Length | 13.0 MILLIMETERS NOMINAL MM |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL PROPERTY CLASS 5.8 |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 12.5 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 221172108 PRIMARY | Alfa Laval Inc (USA) |
| Reference | Meaning |
|---|---|
| 2211721 ITEM 2211721-08 | 5/9 Secondary reference Alfa Laval Inc |
NSN 5305-01-372-8214 is a Screw,machine, manufactured by Alfa Laval Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-372-8214 has 1 manufacturer part number on file: 221172108 (Alfa Laval Inc).
Key specifications for 221172108: Head Height: 3.6 MILLIMETERS NOMINAL MM; Screw Surface Treatment: ZINC AND CHROMATE; Fastener Length: 13.0 MILLIMETERS NOMINAL MM; Thread Length: 13.0 MILLIMETERS NOMINAL MM. 13 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.