The Screw,close Tolerance, cataloged under National Stock Number 5305-01-477-5819, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Valley-Todeco, Inc. Dba Arconic Fastening Systems. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 18 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-477-5819 |
| Primary Part Number | 3M1170V6-6A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Valley-Todeco, Inc. Dba Arconic Fastening Systems |
| Status | ACTIVE |
| Point Diameter | 0.578 INCHES NOMINAL IN |
| Fastener Length | 0.938 INCHES MINIMUM AND 0.968 INCHES MAXIMUM IN |
| Thread Length | 0.573 INCHES MINIMUM AND 0.583 INCHES MAXIMUM IN |
| Spline Major Diameter | 0.154 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Point Style | FLAT |
| Grip Length | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Grip Diameter | 0.374 INCHES NOMINAL IN |
| Internal Drive Style | TORX |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | TITANIUM OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.550 INCHES MINIMUM AND 0.560 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 |
|---|---|
| TX1027V6-6A | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| 3M1170V6-6A PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| GS1014V6-6A PRIMARY | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| TX1027V6-6A PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| TX1027V6-6A PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| WC1170V6-6A | West Coast Aerospace, Inc. (USA) |
| 11845V6-6A PRIMARY | Reid Products Inc. Dba Reid Products Inc (USA) |
| 3M1170V6-6A | Houston Precision Fasteners I Lp (USA) |
| TX1027V6-6A PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| TX1027V6-6A PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 3M1170V6-6A PRIMARY | Heartland Precision Fasteners Inc (USA) |
| 3M1170V6-6A PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| TX1027V6-6A PRIMARY | Hi-Shear Corporation (USA) |
| 3M1170V6-6A PRIMARY | Saturn Fasteners Inc (USA) |
| NGB510GK6-6 | Northrop Grumman Systems Corporation (USA) |
| TX1027V6-6A PRIMARY | Huck International, Inc (USA) |
| 11825V6-6A | Reid Products Inc. Dba Reid Products Inc (USA) |
| 3M1170V6-6A | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| TX1027V6-6A | 3/2 Design control — primary reference U.S. Government activity |
| TX1027V6-6A | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-477-5819 is a Screw,close Tolerance, manufactured by Valley-Todeco, Inc. Dba Arconic Fastening Systems, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-477-5819 has 18 manufacturer part numbers on file: TX1027V6-6A (Fairchild Fasteners Europe - Vsd Gmbh), 3M1170V6-6A (Valley-Todeco, Inc. Dba Arconic Fastening Systems), GS1014V6-6A (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace), TX1027V6-6A (Sps Technologies, Llc Dba PB Fasteners), TX1027V6-6A (Howmet Global Fastening Systems Inc) and 13 more.
Key specifications for 3M1170V6-6A: Point Diameter: 0.578 INCHES NOMINAL IN; Fastener Length: 0.938 INCHES MINIMUM AND 0.968 INCHES MAXIMUM IN; Thread Length: 0.573 INCHES MINIMUM AND 0.583 INCHES MAXIMUM IN; Spline Major Diameter: 0.154 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN. 17 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.