The Screw,close Tolerance, cataloged under National Stock Number 5305-01-433-1007, 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 17 specifications, cited from the U.S. Government catalog. The record lists 15 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-433-1007 |
| Primary Part Number | HT4049-3-11 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Fastener Length | 0.949 INCHES MINIMUM AND 0.979 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.276 INCHES NOMINAL 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 | 0.678 INCHES MINIMUM AND 0.698 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) |
| Head Diameter | 0.338 INCHES MINIMUM AND 0.381 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 |
|---|---|
| HT4049-3-11 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| ST3M714-3-11 | Heartland Precision Fasteners Inc (USA) |
| 11931-3-11 | Reid Products Inc. Dba Reid Products Inc (USA) |
| HT4049-3-11 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| WC4049-3-11 PRIMARY | West Coast Aerospace, Inc. (USA) |
| ST3M714-3-11 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| ST3M714-3-11 | Houston Precision Fasteners I Lp (USA) |
| HT4049-3-11 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| HT4049-3-11 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HT4049-3-11 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| ST3M714-3-11 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| HT4049-3-11 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HT4049-3-11 PRIMARY | Hi-Shear Corporation (USA) |
| HT4049-3-11 PRIMARY | Huck International, Inc (USA) |
| ST3M714-3-11 | Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc (USA) |
| Reference | Meaning |
|---|---|
| ST3M714-3-11 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| HT4049-3-11 | 3/2 Design control — primary reference U.S. Government activity |
| HT4049-3-11 | 5/9 Secondary reference U.S. Government activity |
| HT4049-3-11 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-433-1007 is a Screw,close Tolerance, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-433-1007 has 15 manufacturer part numbers on file: HT4049-3-11 (Sps Technologies Ltd, Tj Brooks Division), ST3M714-3-11 (Heartland Precision Fasteners Inc), 11931-3-11 (Reid Products Inc. Dba Reid Products Inc), HT4049-3-11 (Howmet Global Fastening Systems Inc), WC4049-3-11 (West Coast Aerospace, Inc.) and 10 more.
Key specifications for HT4049-3-11: Fastener Length: 0.949 INCHES MINIMUM AND 0.979 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.276 INCHES NOMINAL 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.