The Screw,close Tolerance, cataloged under National Stock Number 5305-01-511-6975, 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 19 specifications, cited from the U.S. Government catalog. The record lists 19 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-511-6975 |
| Primary Part Number | 3M1170D3-15A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Spline Minor Diameter | 0.1105 INCHES MINIMUM AND 0.1125 INCHES MAXIMUM IN |
| Fastener Length | 1.268 INCHES MINIMUM AND 1.298 INCHES MAXIMUM IN |
| Thread Length | 0.345 INCHES NOMINAL IN |
| Criticality Code Justification | AGAV |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spline Major Diameter | 0.1540 INCHES MINIMUM AND 0.1560 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM IN |
| Grip Diameter | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | TORX |
| Countersink Angle | 99.0 DEGREES MINIMUM 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 | 0.265 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 | Y |
| Part Number | Manufacturer |
|---|---|
| TX1027D3-15A | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 3M1170D3-15A PRIMARY | The Boeing Company Div Defense (USA) |
| TX1027D3-15A | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| WC1170D3-15A | West Coast Aerospace, Inc. (USA) |
| TX1027D3-15A | Hi-Shear Corporation (USA) |
| 3M1170D3-15A PRIMARY | Saturn Fasteners Inc (USA) |
| 3M1170D3-15A PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| 11825D3-15A | Reid Products Inc. Dba Reid Products Inc (USA) |
| TX1027D3-15A | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| TX1027D3-15A | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| GS1014D3-15A PRIMARY | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| TX1027D3-15A | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| TX1027D3-15A | Howmet Global Fastening Systems Inc (USA) |
| HP1170D3-15 | Heartland Precision Fasteners Inc (USA) |
| 11845D3-15A PRIMARY | Reid Products Inc. Dba Reid Products Inc (USA) |
| 3M1170D3-15A PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| 3M1170D3-15A | Houston Precision Fasteners I Lp (USA) |
| 3M1170D3-15A PRIMARY | Heartland Precision Fasteners Inc (USA) |
| TX1027D3-15A | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| TX1027D3-15A | 5/9 Secondary reference Sps Technologies Inc |
| TX1027D3-15A | 5/2 Secondary reference U.S. Government activity |
| 10113847 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| TX1027D3-15A | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-511-6975 is a Screw,close Tolerance, manufactured by The Boeing Company Div Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-511-6975 has 19 manufacturer part numbers on file: TX1027D3-15A (Sps Technologies, Llc Dba PB Fasteners), 3M1170D3-15A (The Boeing Company Div Defense), TX1027D3-15A (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), WC1170D3-15A (West Coast Aerospace, Inc.), TX1027D3-15A (Hi-Shear Corporation) and 14 more.
Key specifications for 3M1170D3-15A: Spline Minor Diameter: 0.1105 INCHES MINIMUM AND 0.1125 INCHES MAXIMUM IN; Fastener Length: 1.268 INCHES MINIMUM AND 1.298 INCHES MAXIMUM IN; Thread Length: 0.345 INCHES NOMINAL IN; Criticality Code Justification: AGAV. 19 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.