The Screw,close Tolerance, cataloged under National Stock Number 5305-01-146-7296, 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 19 specifications, cited from the U.S. Government catalog. The record lists 7 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-146-7296 |
| Primary Part Number | ST3M714-5-8 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Fastener Length | 0.860 INCHES MINIMUM AND 0.890 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.350 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Grip Diameter | 0.3115 INCHES MINIMUM AND 0.3120 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 COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.625 INCHES MINIMUM AND 0.635 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 |
|---|---|
| ST3M714-5-8 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| ST3M714-5-8 PRIMARY | The Boeing Company Div Defense (USA) |
| HT4049-5-8 | Hi-Shear Corporation (USA) |
| ST3M714-5-8 | Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc (USA) |
| ST3M714-5-8 | Huck International, Inc (USA) |
| ST3M714-5-8 | Howmet Global Fastening Systems Inc (USA) |
| HT4049-5-8 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| Reference | Meaning |
|---|---|
| 11931-5-8 | 5/9 Secondary reference Reid Products Inc. Dba Reid Products Inc |
| HT4049-5-8 | 5/9 Secondary reference U.S. Government activity |
| HT4049-5-8 | 5/9 Secondary reference U.S. Government activity |
| HT4049-5-8 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| HT4049-5-8 | 3/2 Design control — primary reference U.S. Government activity |
| 10115439 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5305-01-146-7296 is a Screw,close Tolerance, manufactured by The Boeing Company Div Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-146-7296 has 7 manufacturer part numbers on file: ST3M714-5-8 (Fastener Innovation Technology, Inc. Dba F I T), ST3M714-5-8 (The Boeing Company Div Defense), HT4049-5-8 (Hi-Shear Corporation), ST3M714-5-8 (Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc), ST3M714-5-8 (Huck International, Inc) and 2 more.
Key specifications for ST3M714-5-8: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Fastener Length: 0.860 INCHES MINIMUM AND 0.890 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 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.