The Screw,close Tolerance, cataloged under National Stock Number 5305-01-477-5815, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies Llc Dba PB Fasteners Div PB Fasteners. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 26 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-477-5815 |
| Primary Part Number | TX1027V5-6A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| Status | ACTIVE |
| Point Diameter | 0.469 INCHES NOMINAL IN |
| Fastener Length | 0.829 INCHES MINIMUM AND 0.859 INCHES MAXIMUM IN |
| Thread Length | 0.464 INCHES MINIMUM AND 0.474 INCHES MAXIMUM IN |
| Spline Major Diameter | 0.154 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.312 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 | 0.312 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 | 0.464 INCHES MINIMUM AND 0.473 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 |
|---|---|
| 3M1170V5-6A | Hi-Shear Corporation (USA) |
| 3M1170V5-6A | Heartland Precision Fasteners Inc (USA) |
| TX1027V5-6A PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| TX1027V5-6A PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 3M1170V5-6A | Houston Precision Fasteners I Lp (USA) |
| TX1027V5-6A PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 3M1170V5-6A | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 3M1170V5-6A | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| 3M1170V5-6A | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| TX1027V5-6A PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| GS1014V5-6A PRIMARY | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| 11825V5-6A | Reid Products Inc. Dba Reid Products Inc (USA) |
| 3M1170V5-6A | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 3M1170V5-6A | Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc (USA) |
| 3M1170V5-6A | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| TX1027V5-6A PRIMARY | Huck International, Inc (USA) |
| 3M1170V5-6A | Howmet Global Fastening Systems Inc (USA) |
| 11845V5-6A PRIMARY | Reid Products Inc. Dba Reid Products Inc (USA) |
| 3M1170V5-6A PRIMARY | Saturn Fasteners Inc (USA) |
| 3M1170V5-6A | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| Reference | Meaning |
|---|---|
| 3M1170V5-6A | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| TX1027V5-6A | 3/2 Design control — primary reference U.S. Government activity |
| 3M1170V5-6A | 5/2 Secondary reference U.S. Government activity |
| TX1027V5-6A | 3/2 Design control — primary reference U.S. Government activity |
| 3M1170V5-6A | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-477-5815 is a Screw,close Tolerance, manufactured by Sps Technologies Llc Dba PB Fasteners Div PB Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-477-5815 has 26 manufacturer part numbers on file: 3M1170V5-6A (Hi-Shear Corporation), 3M1170V5-6A (Heartland Precision Fasteners Inc), TX1027V5-6A (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), TX1027V5-6A (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 3M1170V5-6A (Houston Precision Fasteners I Lp) and 21 more.
Key specifications for TX1027V5-6A: Point Diameter: 0.469 INCHES NOMINAL IN; Fastener Length: 0.829 INCHES MINIMUM AND 0.859 INCHES MAXIMUM IN; Thread Length: 0.464 INCHES MINIMUM AND 0.474 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.