The Screw,close Tolerance, cataloged under National Stock Number 5305-01-440-4456, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-440-4456 |
| Primary Part Number | 3M1170D3-3F |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.046 INCHES NOMINAL IN |
| Fastener Length | 0.532 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-C-83488,TY2,CL3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.345 INCHES NOMINAL IN |
| Material Document and Classification | MDA23-112, CAGE76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.187 INCHES NOMINAL IN |
| Grip Diameter | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Surface Treatment | ALUMINUM OVERALL |
| Internal Drive Style | CROSS RECESS TYPE II |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.265 INCHES MINIMUM AND 0.272 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 |
|---|---|
| 3M1170D3-3F PRIMARY | The Boeing Company Div Defense (USA) |
| 11825D3-3F | Reid Products Inc. Dba Reid Products Inc (USA) |
| 11845D3-3F | Reid Products Inc. Dba Reid Products Inc (USA) |
| Reference | Meaning |
|---|---|
| TX1027D3-3F | 5/9 Secondary reference Hi-Shear Corporation |
| TX1027D3-3F | 5/9 Secondary reference Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| TX1027D3-3F | 5/9 Secondary reference Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
NSN 5305-01-440-4456 is a Screw,close Tolerance, manufactured by The Boeing Company Div Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-440-4456 has 3 manufacturer part numbers on file: 3M1170D3-3F (The Boeing Company Div Defense), 11825D3-3F (Reid Products Inc. Dba Reid Products Inc), 11845D3-3F (Reid Products Inc. Dba Reid Products Inc).
Key specifications for 3M1170D3-3F: Head Height: 0.046 INCHES NOMINAL IN; Fastener Length: 0.532 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-C-83488,TY2,CL3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.345 INCHES NOMINAL IN. 18 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.