The Screw,tapping, cataloged under National Stock Number 5305-01-482-1838, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Barnhill Bolt Co., Inc.. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-482-1838 |
| Primary Part Number | 428-832-58-2A21A |
| Item Name | Screw,tapping |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Barnhill Bolt Co., Inc. |
| Status | ACTIVE |
| Nonmachine Nominal Thread Diameter | 0.164 INCHES IN |
| Head Height | 0.091 INCHES NOMINAL IN |
| Fastener Length | 0.625 INCHES NOMINAL IN |
| Nonmachine Thread Style | DOUBLE FLUTE (TYPE F) |
| Head Style | PAN |
| Internal Drive Style | CROSS RECESS TYPE II |
| Material | STEEL OVERALL |
| Head Diameter | 0.315 INCHES NOMINAL 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 |
|---|---|
| 428-832-58-2A21A PRIMARY | Barnhill Bolt Co., Inc. (USA) |
| Reference | Meaning |
|---|---|
| 428-832-58-2A21A | 3/9 Design control — primary reference Bryant and Associates Inc |
| 428-832-58-2A21 A | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5305-01-482-1838 is a Screw,tapping, manufactured by Barnhill Bolt Co., Inc., classified under FSC 5305, Screws. Status: active.
NSN 5305-01-482-1838 has 1 manufacturer part number on file: 428-832-58-2A21A (Barnhill Bolt Co., Inc.).
Key specifications for 428-832-58-2A21A: Nonmachine Nominal Thread Diameter: 0.164 INCHES IN; Head Height: 0.091 INCHES NOMINAL IN; Fastener Length: 0.625 INCHES NOMINAL IN; Nonmachine Thread Style: DOUBLE FLUTE (TYPE F). 8 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.