The Screw,close Tolerance, cataloged under National Stock Number 5305-01-365-0404, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Commercial. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-365-0404 |
| Primary Part Number | BACB30LK3-13 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The Boeing Company Div Commercial |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Head Height | 0.122 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN |
| Fastener Length | 1.142 INCHES MINIMUM AND 1.172 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Thread Length | 0.345 INCHES NOMINAL IN |
| Material Document and Classification | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN |
| Grip Diameter | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 95000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.357 INCHES MINIMUM AND 0.373 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 |
|---|---|
| BACB30LK3-13 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| BACB30LK3-13 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| BACB30LK3-13 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BACB30LK3-13 PRIMARY | The Boeing Company Div Commercial (USA) |
| BACB30LK3-13 | Deutsch Co the (USA) |
| BACB30LK3-13 | Federal Manufacturing Corp (USA) |
| BACB30LK3-13 | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| BACB30LK3-13 | 5/2 Secondary reference U.S. Government activity |
| BACB30LK3-13 | 5/9 Secondary reference U.S. Government activity |
| BACB30LK3-13 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-365-0404 is a Screw,close Tolerance, manufactured by The Boeing Company Div Commercial, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-365-0404 has 7 manufacturer part numbers on file: BACB30LK3-13 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), BACB30LK3-13 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), BACB30LK3-13 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), BACB30LK3-13 (The Boeing Company Div Commercial), BACB30LK3-13 (Deutsch Co the) and 2 more.
1 possible match (shared part number, not a government interchangeability claim): 5305-01-669-4201. Verify interchangeability with system specifications before substitution.
Key specifications for BACB30LK3-13: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Head Height: 0.122 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN. 21 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.