The Screw,close Tolerance, cataloged under National Stock Number 5305-01-044-7473, 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 15 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 13 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-044-7473 |
| Primary Part Number | 3M123-5-11 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Fastener Length | 1.203 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN |
| Thread Length | 0.505 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN |
| Hardness Rating | 24.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM IN |
| Grip Diameter | 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.629 INCHES MINIMUM AND 0.634 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 |
|---|---|
| 3M123-5-11 PRIMARY | The Boeing Company Div Defense (USA) |
| HT123-5-11 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HT123-5-11 | Hi-Shear Corporation (USA) |
| 3M123-5-11 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| Reference | Meaning |
|---|---|
| HT4N-11 | 5/9 Secondary reference U.S. Government activity |
| HT1029A-5-11 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| 5429-5-11 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| HT4N-11 | C/1 Advisory reference — outside the item-of-supply concept Howmet Global Fastening Systems Inc |
| E129-5-11 | 5/9 Secondary reference U.S. Government activity |
| HT1029A-5-11 | 5/9 Secondary reference U.S. Government activity |
| 3M123-5-11 | 5/9 Secondary reference The Boeing Company Div Stl Site Fcl |
| E129-5-11 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| 5429-5-11 | 5/9 Secondary reference U.S. Government activity |
| 3M123-5-11 | 5/2 Secondary reference U.S. Government activity |
| 3M123-5-11 | 5/9 Secondary reference U.S. Government activity |
| HT5N11 | 5/9 Secondary reference Hi-Shear Corporation |
| 3M123-5-11 | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-044-7473 is a Screw,close Tolerance, manufactured by The Boeing Company Div Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-044-7473 has 4 manufacturer part numbers on file: 3M123-5-11 (The Boeing Company Div Defense), HT123-5-11 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HT123-5-11 (Hi-Shear Corporation), 3M123-5-11 (Fastener Innovation Technology, Inc. Dba F I T).
Key specifications for 3M123-5-11: Fastener Length: 1.203 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN; Thread Length: 0.505 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN; Hardness Rating: 24.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM OVERALL; Nominal Thread Diameter: 0.312 INCHES IN. 15 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.