The Screw,close Tolerance, cataloged under National Stock Number 5305-01-102-5519, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 23 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-102-5519 |
| Primary Part Number | HT4049-3-5 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Fastener Length | 0.573 INCHES MINIMUM AND 0.603 INCHES MAXIMUM IN |
| Thread Length | 0.251 INCHES MINIMUM AND 0.301 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 | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.302 INCHES MINIMUM AND 0.322 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 | 0.376 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 |
|---|---|
| HT4049-3-5 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HT4049-3-5 | Hi-Shear Corporation (USA) |
| HT4049-3-5 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| HT4049-3-5 PRIMARY | Huck International, Inc (USA) |
| ST3M714-3-5 | Houston Precision Fasteners I Lp (USA) |
| ST3M714-3-5 | Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc (USA) |
| ST3M714-3-5 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| ST3M714-3-5 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| HT4049-3-5 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HT4049-3-5 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HT4049-3-5 | Howmet Global Fastening Systems Inc (USA) |
| ST3M714-3-5 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| ST3M714-3-5 | West Coast Aerospace, Inc. (USA) |
| ST3M714-3-5 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| ST3M714-3-5 | Hi-Shear Corporation (USA) |
| ST3M714-3-5 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| WC4049-3-5 | West Coast Aerospace, Inc. (USA) |
| ST3M714-3-5 PRIMARY | The Boeing Company Div Defense (USA) |
| 11931-3-5 | Reid Products Inc. Dba Reid Products Inc (USA) |
| ST3M714-3-5 | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| HT4049-3-5 | 5/2 Secondary reference U.S. Government activity |
| ST3M714-3-5 | 5/9 Secondary reference Sps Technologies Inc |
| ST3M714-3-5 | 5/2 Secondary reference U.S. Government activity |
| HT4049-3-5 | 5/9 Secondary reference U.S. Government activity |
| 10115013 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| HT4049-3-5 | C/1 Advisory reference — outside the item-of-supply concept Sps Technologies Inc |
| HT4049-3-5 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-102-5519 is a Screw,close Tolerance, manufactured by Huck International, Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-102-5519 has 23 manufacturer part numbers on file: HT4049-3-5 (Sps Technologies, Llc Dba PB Fasteners), HT4049-3-5 (Hi-Shear Corporation), HT4049-3-5 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), HT4049-3-5 (Huck International, Inc), ST3M714-3-5 (Houston Precision Fasteners I Lp) and 18 more.
Key specifications for HT4049-3-5: Fastener Length: 0.573 INCHES MINIMUM AND 0.603 INCHES MAXIMUM IN; Thread Length: 0.251 INCHES MINIMUM AND 0.301 INCHES MAXIMUM IN; Material Document and Classification: 23-112 FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL; Nominal Thread Diameter: 0.190 INCHES IN. 16 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.