The Screw,close Tolerance, cataloged under National Stock Number 5305-01-481-9301, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Reid Products Inc. Dba Reid Products Inc. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 16 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-481-9301 |
| Primary Part Number | 11845V4-9A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Reid Products Inc. Dba Reid Products Inc |
| Status | ACTIVE |
| Point Diameter | 0.425 INCHES NOMINAL IN |
| Fastener Length | 0.988 INCHES NOMINAL IN |
| Thread Length | 0.425 INCHES NOMINAL IN |
| Criticality Code Justification | AGAV |
| Spline Major Diameter | 0.154 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Point Style | FLAT |
| Grip Length | 0.563 INCHES NOMINAL IN |
| Grip Diameter | 0.249 INCHES NOMINAL IN |
| Minimum Tensile Strength | 3200 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 | 28 |
| Material | TITANIUM OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.358 INCHES MINIMUM AND 0.365 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 |
|---|---|
| 3M1170V4-9A | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| TX1027V4-9A | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 11825V4-9-A | Reid Products Inc. Dba Reid Products Inc (USA) |
| 11845V4-9A PRIMARY | Reid Products Inc. Dba Reid Products Inc (USA) |
| 3M1170V4-9A | Houston Precision Fasteners I Lp (USA) |
| TX1027V4-9A PRIMARY | Hi-Shear Corporation (USA) |
| GS1014V4-9A | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| 3M1170V4-9A | Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc (USA) |
| TX1027V4-9A | Howmet Global Fastening Systems Inc (USA) |
| 3M1170V4-9A | Saturn Fasteners Inc (USA) |
| 3M1170V4-9A PRIMARY | Heartland Precision Fasteners Inc (USA) |
| 3M1170V4-9A | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| TX1027V4-9A | Huck International, Inc (USA) |
| WC1170V4-9A | West Coast Aerospace, Inc. (USA) |
| TX1027V4-9A | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 3M1170V4-9A PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| TX1027V4-9A | 5/2 Secondary reference U.S. Government activity |
| TX1027V4-9A | 5/9 Secondary reference Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| TX1027V4-9A | 5/9 Secondary reference Fairchild Fasteners Europe - Vsd Gmbh |
| TX1027V4-9A | 5/9 Secondary reference U.S. Government activity |
| TX1027V4-9A | 5/9 Secondary reference Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| TX1027V4-9A | 5/9 Secondary reference Sps Technologies Inc |
NSN 5305-01-481-9301 is a Screw,close Tolerance, manufactured by Reid Products Inc. Dba Reid Products Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-481-9301 has 16 manufacturer part numbers on file: 3M1170V4-9A (Valley-Todeco, Inc. Dba Arconic Fastening Systems), TX1027V4-9A (Sps Technologies, Llc Dba PB Fasteners), 11825V4-9-A (Reid Products Inc. Dba Reid Products Inc), 11845V4-9A (Reid Products Inc. Dba Reid Products Inc), 3M1170V4-9A (Houston Precision Fasteners I Lp) and 11 more.
Key specifications for 11845V4-9A: Point Diameter: 0.425 INCHES NOMINAL IN; Fastener Length: 0.988 INCHES NOMINAL IN; Thread Length: 0.425 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.