The Screw,close Tolerance, cataloged under National Stock Number 5305-01-076-7207, 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 9 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-076-7207 |
| Primary Part Number | ST3M455-3L18-1 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.013 INCHES MAXIMUM IN |
| Fastener Length | 1.516 INCHES MINIMUM AND 1.546 INCHES MAXIMUM IN |
| Thread Length | 0.381 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN |
| Material Document and Classification | 23-112,FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FILLISTER COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 76301-ST3-455 MANUFACTURERS STANDARD |
| Grip Length | 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN |
| Grip Diameter | 0.1890 INCHES MINIMUM AND 0.1895 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 | 32 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.297 INCHES MINIMUM AND 0.302 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 |
|---|---|
| ST3M455-3L18-1 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| HT4024L3-18 | Hi-Shear Corporation (USA) |
| 11907-3L18-1 | Reid Products Inc. Dba Reid Products Inc (USA) |
| WC4024L3-18 | West Coast Aerospace, Inc. (USA) |
| HT4024L3-18 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HT4024L3-18 | Howmet Global Fastening Systems Inc (USA) |
| HT-4024L3-18 | Huck International, Inc (USA) |
| ST3M455-3L18-1 PRIMARY | The Boeing Company Div Defense (USA) |
| HT4024L3-18 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| Reference | Meaning |
|---|---|
| HT4024L3-18 | 5/9 Secondary reference U.S. Government activity |
| 10114968 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| HT4024L3-18 | 5/2 Secondary reference U.S. Government activity |
| HT4024L3-18 | 5/2 Secondary reference U.S. Government activity |
| 3929AS1227-3R18 | 7/2 Vendor item drawing reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 5305-01-076-7207 is a Screw,close Tolerance, manufactured by The Boeing Company Div Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-076-7207 has 9 manufacturer part numbers on file: ST3M455-3L18-1 (Fastener Innovation Technology, Inc. Dba F I T), HT4024L3-18 (Hi-Shear Corporation), 11907-3L18-1 (Reid Products Inc. Dba Reid Products Inc), WC4024L3-18 (West Coast Aerospace, Inc.), HT4024L3-18 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc) and 4 more.
Key specifications for ST3M455-3L18-1: Head Height: 0.013 INCHES MAXIMUM IN; Fastener Length: 1.516 INCHES MINIMUM AND 1.546 INCHES MAXIMUM IN; Thread Length: 0.381 INCHES MINIMUM AND 0.431 INCHES MAXIMUM 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.