The Screw,close Tolerance, cataloged under National Stock Number 5305-01-102-1869, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 16 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-102-1869 |
| Primary Part Number | HT4025L5-9 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Fastener Length | 1.078 INCHES MINIMUM AND 1.108 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.506 INCHES MINIMUM AND 0.556 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 | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM 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 |
|---|---|
| ST3M454-5L9 | Heartland Precision Fasteners Inc (USA) |
| ST3M454-5L9 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| ST3M454-5L9 | West Coast Aerospace, Inc. (USA) |
| ST3M454-5L9 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| HT4025L5-9 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HT4025L5-9 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| ST3M454-5L9 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| HT4025L5-9 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 11905-5L9 | Reid Products Inc. Dba Reid Products Inc (USA) |
| HT4025L5-9 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| ST3M454-5L9 | Howmet Global Fastening Systems Inc (USA) |
| HT4025L5-9 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| ST3M454-5L9 | The Boeing Company Div Defense (USA) |
| HT4025L5-9 | Huck International, Inc (USA) |
| HT4025L5-9 PRIMARY | Hi-Shear Corporation (USA) |
| ST3M454-5L9 | Houston Precision Fasteners I Lp (USA) |
| Reference | Meaning |
|---|---|
| ST3M454-5L9 | 5/9 Secondary reference Sps Technologies Inc |
| 10115012 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| HT4025L5-9 | 3/2 Design control — primary reference U.S. Government activity |
| HT4025L5-9 | 3/2 Design control — primary reference U.S. Government activity |
| HT4025L5-9 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-102-1869 is a Screw,close Tolerance, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-102-1869 has 16 manufacturer part numbers on file: ST3M454-5L9 (Heartland Precision Fasteners Inc), ST3M454-5L9 (Sps Technologies Ltd, Tj Brooks Division), ST3M454-5L9 (West Coast Aerospace, Inc.), ST3M454-5L9 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), HT4025L5-9 (Sps Technologies, Llc Dba PB Fasteners) and 11 more.
Key specifications for HT4025L5-9: Fastener Length: 1.078 INCHES MINIMUM AND 1.108 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.506 INCHES MINIMUM AND 0.556 INCHES MAXIMUM IN; Material Document and Classification: AMS 5629 ASSN 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.