The Screw,close Tolerance, cataloged under National Stock Number 5305-00-040-9432, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-040-9432 |
| Primary Part Number | BM19019-4-25 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Fastener Length | 1.943 INCHES MINIMUM AND 1.990 INCHES MAXIMUM IN |
| Thread Length | 0.370 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 08524-B-19019 MANUFACTURERS STANDARD |
| Grip Length | 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN |
| Grip Diameter | 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.497 INCHES MINIMUM AND 0.507 INCHES MAXIMUM 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 |
|---|---|
| HT8140-4-25 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| BM19019-4-25 PRIMARY | Huck International, Inc (USA) |
| HT295-4-25 PRIMARY | Hi-Shear Corporation (USA) |
| HT295-4-25 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HT8140-4-25 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| 11905-4-25 | Reid Products Inc. Dba Reid Products Inc (USA) |
| 106830-4-25 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HT295-4-25 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| Reference | Meaning |
|---|---|
| ST3M454-4-25 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| BM19019-4-25 | 5/9 Secondary reference U.S. Government activity |
| 106830-4-25 | 5/9 Secondary reference Sps Technologies Inc |
| HT8140-4-25 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-00-040-9432 is a Screw,close Tolerance, manufactured by Huck International, Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-040-9432 has 8 manufacturer part numbers on file: HT8140-4-25 (Fairchild Fasteners Europe - Vsd Gmbh), BM19019-4-25 (Huck International, Inc), HT295-4-25 (Hi-Shear Corporation), HT295-4-25 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HT8140-4-25 (Howmet Global Fastening Systems Inc) and 3 more.
Key specifications for BM19019-4-25: Fastener Length: 1.943 INCHES MINIMUM AND 1.990 INCHES MAXIMUM IN; Thread Length: 0.370 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.250 INCHES IN; Head Style: FLAT COUNTERSUNK. 16 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.