The Screw,tapping, cataloged under National Stock Number 5305-01-645-2126, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Infastech Decorah Llc Dba Camcar Decorah Operations Div Decorah Operations. Government technical data includes 10 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-645-2126 |
| Primary Part Number | 3BH-H8020-00 |
| Item Name | Screw,tapping |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Infastech Decorah Llc Dba Camcar Decorah Operations Div Decorah Operations |
| Status | ACTIVE |
| Nonmachine Nominal Thread Diameter | 0.250 INCHES IN |
| Head Height | 0.250 INCHES NOMINAL IN |
| Fastener Length | 0.625 INCHES NOMINAL IN |
| Extended Washer Diameter | 0.520 INCHES NOMINAL IN |
| Nonmachine Thread Style | BLUNT (TYPE TT) |
| Head Style | HEXAGON EXTENDED WASHER |
| Width Between Flats | 0.375 INCHES NOMINAL IN |
| Surface Treatment | ZINC OVERALL |
| Internal Drive Style | SLOT |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 93882A538 | Mcmaster-Carr Supply Co (USA) |
| 3BH-H8020-00 PRIMARY | Infastech Decorah Llc Dba Camcar Decorah Operations Div Decorah Operations (USA) |
NSN 5305-01-645-2126 is a Screw,tapping, manufactured by Infastech Decorah Llc Dba Camcar Decorah Operations Div Decorah Operations, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-645-2126 has 2 manufacturer part numbers on file: 93882A538 (Mcmaster-Carr Supply Co), 3BH-H8020-00 (Infastech Decorah Llc Dba Camcar Decorah Operations Div Decorah Operations).
Key specifications for 3BH-H8020-00: Nonmachine Nominal Thread Diameter: 0.250 INCHES IN; Head Height: 0.250 INCHES NOMINAL IN; Fastener Length: 0.625 INCHES NOMINAL IN; Extended Washer Diameter: 0.520 INCHES NOMINAL IN. 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.