The Screw,close Tolerance, cataloged under National Stock Number 5305-01-020-9617, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Hi-Shear Corporation. Government technical data includes 17 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-020-9617 |
| Primary Part Number | HT4025L3-11 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Fastener Length | 1.079 INCHES MINIMUM AND 1.109 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | 171,FINISH NO. 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.381 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.698 INCHES MINIMUM IN |
| Grip Diameter | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 2 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.376 INCHES MINIMUM AND 0.385 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 |
|---|---|
| HT4025L3-11 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HT4025L3-11 PRIMARY | Hi-Shear Corporation (USA) |
| HT4025L3-11 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| HT4025L3-11 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| WC4025L-3-11 PRIMARY | West Coast Aerospace, Inc. (USA) |
| HT4025L3-11 PRIMARY | Huck International, Inc (USA) |
| 11905-3L11 PRIMARY | Reid Products Inc. Dba Reid Products Inc (USA) |
| HT4025L3-11 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HT4025L3-11 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| ST3M454-3L11 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| HT4025L3-11 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| ST3M454-3L11 PRIMARY | Heartland Precision Fasteners Inc (USA) |
| ST3M454-3L11 PRIMARY | Houston Precision Fasteners I Lp (USA) |
| ST3M454-3L11 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| Reference | Meaning |
|---|---|
| HT4025L3-11 | 5/9 Secondary reference U.S. Government activity |
| HT4025L3-11 | 5/9 Secondary reference U.S. Government activity |
| ST3M454-3L11 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| HT4025L3-11 | 3/2 Design control — primary reference U.S. Government activity |
| 10114856 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| HT4025L3-11 | 5/9 Secondary reference Sps Technologies Inc |
NSN 5305-01-020-9617 is a Screw,close Tolerance, manufactured by Hi-Shear Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-020-9617 has 14 manufacturer part numbers on file: HT4025L3-11 (Sps Technologies Ltd, Tj Brooks Division), HT4025L3-11 (Hi-Shear Corporation), HT4025L3-11 (Howmet Global Fastening Systems Inc), HT4025L3-11 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), WC4025L-3-11 (West Coast Aerospace, Inc.) and 9 more.
Key specifications for HT4025L3-11: Fastener Length: 1.079 INCHES MINIMUM AND 1.109 INCHES MAXIMUM IN; Surface Treatment Document and Classification: 171,FINISH NO. 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.381 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN; Material Document and Classification: AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 17 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.