The Screw,close Tolerance, cataloged under National Stock Number 5305-01-628-4505, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Heartland Precision Fasteners Inc. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 12 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-628-4505 |
| Primary Part Number | 3M1170V6-10A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Heartland Precision Fasteners Inc |
| Status | ACTIVE |
| Head Height | 0.077 INCHES NOMINAL IN |
| Fastener Length | 1.188 INCHES MINIMUM AND 1.218 INCHES MAXIMUM IN |
| Thread Length | 0.578 INCHES NOMINAL IN |
| Spline Major Diameter | 0.154 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN |
| Point Chamfer Angle | 45.0 DEGREES NOMINAL |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Point Style | FLAT |
| Grip Length | 0.625 INCHES NOMINAL IN |
| Grip Diameter | 0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN |
| Nonstandard Thread Pitch Diameter | -0.2175 TO 0.2175 INCHES IN |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| 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 | 0.5504 INCHES MINIMUM AND 0.5604 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 |
|---|---|
| 3M1170V6-10A PRIMARY | Heartland Precision Fasteners Inc (USA) |
| TX27V6-10A PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| TX27V6-10A PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 3M1170V6-10A PRIMARY | Saturn Fasteners Inc (USA) |
| TX27V6-10A PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| TX27V6-10A PRIMARY | Hi-Shear Corporation (USA) |
| 3M1170V6-10A PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| 3M1170V6-10A PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| 11845V6-10A PRIMARY | Reid Products Inc. Dba Reid Products Inc (USA) |
| TX27V6-10A PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| GS1014V6-10A PRIMARY | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| 3M1170V6-10A PRIMARY | Houston Precision Fasteners I Lp (USA) |
| Reference | Meaning |
|---|---|
| TX27V6-10A | 3/2 Design control — primary reference U.S. Government activity |
| 3M1170V6-10A | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| TX27V6-10A | 3/2 Design control — primary reference U.S. Government activity |
| TX27V6-10A | 5/1 Secondary reference Fairchild Fasteners Europe - Vsd Gmbh |
NSN 5305-01-628-4505 is a Screw,close Tolerance, manufactured by Heartland Precision Fasteners Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-628-4505 has 12 manufacturer part numbers on file: 3M1170V6-10A (Heartland Precision Fasteners Inc), TX27V6-10A (Sps Technologies, Llc Dba PB Fasteners), TX27V6-10A (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 3M1170V6-10A (Saturn Fasteners Inc), TX27V6-10A (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners) and 7 more.
Key specifications for 3M1170V6-10A: Head Height: 0.077 INCHES NOMINAL IN; Fastener Length: 1.188 INCHES MINIMUM AND 1.218 INCHES MAXIMUM IN; Thread Length: 0.578 INCHES NOMINAL IN; Spline Major Diameter: 0.154 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN. 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.