The Screw,close Tolerance, cataloged under National Stock Number 5305-01-126-5264, 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 18 specifications, cited from the U.S. Government catalog. The record lists 8 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-126-5264 |
| Primary Part Number | ST3M714-6D14 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Fastener Length | 1.251 INCHES MINIMUM AND 1.281 INCHES MAXIMUM IN |
| Thread Length | 0.366 INCHES MINIMUM AND 0.416 INCHES MAXIMUM IN |
| Shank Unthreaded Hole Diameter | 0.106 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | 23-112 FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN |
| Grip Diameter | 0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.128 INCHES MINIMUM AND 1.168 INCHES MAXIMUM FIRST HOLE IN |
| Head Diameter | 0.752 INCHES MINIMUM AND 0.762 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 |
|---|---|
| HT4049-6D14 | Huck International, Inc (USA) |
| ST3M714-6D14 | West Coast Aerospace, Inc. (USA) |
| ST3M714-6D14 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| HT4049-6D14 | Hi-Shear Corporation (USA) |
| HT4049-6D14 | Howmet Global Fastening Systems Inc (USA) |
| ST3M714-6D14 PRIMARY | The Boeing Company Div Defense (USA) |
| ST3M714-6D14 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HT4049-6D14 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| Reference | Meaning |
|---|---|
| HT4049-6D14 | 5/2 Secondary reference U.S. Government activity |
| 10115142 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| HT4049-6D14 | 5/9 Secondary reference U.S. Government activity |
| HT4049-6D14 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| HT4049-6D14 | 5/9 Secondary reference U.S. Government activity |
| ST3M714-6D14 | 5/9 Secondary reference Sps Technologies Inc |
NSN 5305-01-126-5264 is a Screw,close Tolerance, manufactured by The Boeing Company Div Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-126-5264 has 8 manufacturer part numbers on file: HT4049-6D14 (Huck International, Inc), ST3M714-6D14 (West Coast Aerospace, Inc.), ST3M714-6D14 (Fastener Innovation Technology, Inc. Dba F I T), HT4049-6D14 (Hi-Shear Corporation), HT4049-6D14 (Howmet Global Fastening Systems Inc) and 3 more.
Key specifications for ST3M714-6D14: Fastener Length: 1.251 INCHES MINIMUM AND 1.281 INCHES MAXIMUM IN; Thread Length: 0.366 INCHES MINIMUM AND 0.416 INCHES MAXIMUM IN; Shank Unthreaded Hole Diameter: 0.106 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE IN; Material Document and Classification: 23-112 FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL. 18 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.