The Screw,close Tolerance, cataloged under National Stock Number 5305-01-212-5213, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 19 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-212-5213 |
| Primary Part Number | HT4025L3D17 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Fastener Length | 1.454 INCHES MINIMUM AND 1.484 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.382 INCHES MINIMUM AND 0.432 INCHES MAXIMUM IN |
| Shank Unthreaded Hole Diameter | 0.070 INCHES MINIMUM AND 0.075 INCHES MAXIMUM FIRST HOLE 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 | 1.052 INCHES MINIMUM AND 1.072 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 COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.333 INCHES MINIMUM AND 1.373 INCHES MAXIMUM FIRST HOLE IN |
| 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 |
|---|---|
| 1190503DL17 | Reid Products Inc. Dba Reid Products Inc (USA) |
| ST3M454-3DL17 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| HT4025L3D17 | Huck International, Inc (USA) |
| HT4025L3D17 | Hi-Shear Corporation (USA) |
| HT4025L3D17 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HT4025L3D17 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| WC4025L-3D17 | West Coast Aerospace, Inc. (USA) |
| HT4025L3D17 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HT4025L3D17 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HT4025L3D17 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| ST3M454-3DL17 PRIMARY | The Boeing Company Div Defense (USA) |
| ST3M454-3DL17 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| ST3M454-3DL17 | Heartland Precision Fasteners Inc (USA) |
| ST3M454-3DL17 | Houston Precision Fasteners I Lp (USA) |
| HT4025L3D17 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 11905-3DL17 | Reid Products Inc. Dba Reid Products Inc (USA) |
| Reference | Meaning |
|---|---|
| HT4025L3D17 | 5/9 Secondary reference U.S. Government activity |
| HT4025L3D17 | 5/2 Secondary reference U.S. Government activity |
| ST3M454-3DL17 | 5/9 Secondary reference West Coast Aerospace, Inc. |
| HT4025L3D17 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-212-5213 is a Screw,close Tolerance, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-212-5213 has 16 manufacturer part numbers on file: 1190503DL17 (Reid Products Inc. Dba Reid Products Inc), ST3M454-3DL17 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), HT4025L3D17 (Huck International, Inc), HT4025L3D17 (Hi-Shear Corporation), HT4025L3D17 (Sps Technologies Ltd, Tj Brooks Division) and 11 more.
Key specifications for HT4025L3D17: Fastener Length: 1.454 INCHES MINIMUM AND 1.484 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.382 INCHES MINIMUM AND 0.432 INCHES MAXIMUM IN; Shank Unthreaded Hole Diameter: 0.070 INCHES MINIMUM AND 0.075 INCHES MAXIMUM FIRST HOLE IN. 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.