The Screw,machine, cataloged under National Stock Number 5305-01-476-0620, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-476-0620 |
| Primary Part Number | BACS12ER06K4BG |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Screw Surface Treatment | ALUMINUM |
| Fastener Length | 0.350 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN |
| Screw Material Document and Classification | AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE |
| Nominal Thread Diameter | 0.1380 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Screw Material | TITANIUM ALLOY |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Quantity Per Inch | 24 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.742 INCHES MINIMUM AND 0.762 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | BMS 10-85, TYPE I MFR REF SINGLE TREATMENT RESPONSE |
| 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 |
|---|---|
| BACS12ER06K4BG | Howmet Global Fastening Systems Inc (USA) |
| BACS12ER06K4BG | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| BACS12ER06K4BG | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-476-0620 is a Screw,machine, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-476-0620 has 2 manufacturer part numbers on file: BACS12ER06K4BG (Howmet Global Fastening Systems Inc), BACS12ER06K4BG (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for BACS12ER06K4BG: Screw Surface Treatment: ALUMINUM; Fastener Length: 0.350 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN; Screw Material Document and Classification: AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE; Nominal Thread Diameter: 0.1380 INCHES IN. 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.