The Screw,close Tolerance, cataloged under National Stock Number 5305-01-447-6525, 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 16 specifications, cited from the U.S. Government catalog. The record lists 11 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-447-6525 |
| Primary Part Number | 3M1170D3-24A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.049 INCHES NOMINAL IN |
| Fastener Length | 1.845 INCHES NOMINAL IN |
| Thread Length | 0.345 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.500 INCHES NOMINAL IN |
| Grip Diameter | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 99.0 DEGREES NOMINAL AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.263 INCHES MINIMUM AND 0.305 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 |
|---|---|
| 3M1170D3-24A PRIMARY | The Boeing Company Div Defense (USA) |
| TX1027D3-24A | Howmet Global Fastening Systems Inc (USA) |
| 11825D3-24A | Reid Products Inc. Dba Reid Products Inc (USA) |
| TX1027D3-24A | Hi-Shear Corporation (USA) |
| 3M1170D3-24A | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 3M1170D3-24A | Heartland Precision Fasteners Inc (USA) |
| TX1027D3-24A | Sps Technologies, Llc Dba PB Fasteners (USA) |
| TX1027D3-24A | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| TX1027D3-24A | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 11845D3-24A | Reid Products Inc. Dba Reid Products Inc (USA) |
| TX1027D3-24A | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| Reference | Meaning |
|---|---|
| TX1027D3-24A | 5/9 Secondary reference Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| TX1027D3-24A | 5/2 Secondary reference U.S. Government activity |
| HP1170D3-24 | C/1 Advisory reference — outside the item-of-supply concept Heartland Precision Fasteners Inc |
| 3M1170D3-24A | 5/2 Secondary reference U.S. Government activity |
| 10113824 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| TX1027D3-24A | 5/9 Secondary reference Sps Technologies Inc |
NSN 5305-01-447-6525 is a Screw,close Tolerance, manufactured by The Boeing Company Div Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-447-6525 has 11 manufacturer part numbers on file: 3M1170D3-24A (The Boeing Company Div Defense), TX1027D3-24A (Howmet Global Fastening Systems Inc), 11825D3-24A (Reid Products Inc. Dba Reid Products Inc), TX1027D3-24A (Hi-Shear Corporation), 3M1170D3-24A (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 6 more.
Key specifications for 3M1170D3-24A: Head Height: 0.049 INCHES NOMINAL IN; Fastener Length: 1.845 INCHES NOMINAL IN; Thread Length: 0.345 INCHES NOMINAL IN; Nominal Thread Diameter: 0.190 INCHES IN. 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.