The Screw,close Tolerance, cataloged under National Stock Number 5305-01-703-3738, 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 14 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-703-3738 |
| Primary Part Number | ST3M714-5-9 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Fastener Length | 0.9375 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | AMS2700, METHOD 1 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.375 INCHES NOMINAL IN |
| Material Document and Classification | AMS5629, PH13-8MO AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.3125 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.5625 INCHES NOMINAL IN |
| Grip Diameter | 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| 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 |
|---|---|
| ST3M714-5-9 | Heartland Precision Fasteners Inc (USA) |
| ST3M714-5-9 | Houston Precision Fasteners I Lp (USA) |
| ST3M714-5-9 PRIMARY | The Boeing Company Div Defense (USA) |
| HT4049-5-9 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HT4049-5-9 | Hi-Shear Corporation (USA) |
| HT4049-5-9 | Howmet Global Fastening Systems Inc (USA) |
| HT4049-5-9 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| WC4049-5-9 | West Coast Aerospace, Inc. (USA) |
| HT4049-5-9 | Huck International, Inc (USA) |
| ST3M714-5-9 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| HT4049-5-9 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| 11931-5-9 | Reid Products Inc. Dba Reid Products Inc (USA) |
| ST3M714-5-9 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| HT4049-5-9 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| HT4049-5-9 | 5/2 Secondary reference U.S. Government activity |
| HT4049-5-9 | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-703-3738 is a Screw,close Tolerance, manufactured by The Boeing Company Div Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-703-3738 has 14 manufacturer part numbers on file: ST3M714-5-9 (Heartland Precision Fasteners Inc), ST3M714-5-9 (Houston Precision Fasteners I Lp), ST3M714-5-9 (The Boeing Company Div Defense), HT4049-5-9 (Sps Technologies, Llc Dba PB Fasteners), HT4049-5-9 (Hi-Shear Corporation) and 9 more.
Key specifications for ST3M714-5-9: Fastener Length: 0.9375 INCHES NOMINAL IN; Surface Treatment Document and Classification: AMS2700, METHOD 1 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.375 INCHES NOMINAL IN; Material Document and Classification: AMS5629, PH13-8MO AEROSPACE MATERIAL SPEC STD 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.