The Screw,close Tolerance, cataloged under National Stock Number 5305-01-445-6449, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-445-6449 |
| Primary Part Number | TX1024D3-2-5A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| Status | ACTIVE |
| Head Height | 0.049 INCHES NOMINAL IN |
| Thread Length | 0.438 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.1900 INCHES IN |
| Head Style | FLAT COUNTERSUNK UNDERCUT |
| Thread Direction | RIGHT-HAND |
| Grip Diameter | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| 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 | 0.265 INCHES MINIMUM AND 0.272 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 |
|---|---|
| TX1024D3-2-5A | Hi-Shear Corporation (USA) |
| TX1024D3-2-5A PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| TX1024D3-2-5A | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| Reference | Meaning |
|---|---|
| TX1024D3-2-5A | C/1 Advisory reference — outside the item-of-supply concept Sps Technologies, Llc Dba PB Fasteners |
| 10113820 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| TX1024D3-2-5A | C/1 Advisory reference — outside the item-of-supply concept Sps Technologies Inc |
| TX1024D3-2-5A | C/1 Advisory reference — outside the item-of-supply concept Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| HP1024D3-2-5A | C/1 Advisory reference — outside the item-of-supply concept Heartland Precision Fasteners Inc |
| TX1024D3-2-5A | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| TX1024D3-2-5A | C/1 Advisory reference — outside the item-of-supply concept Howmet Global Fastening Systems Inc |
NSN 5305-01-445-6449 is a Screw,close Tolerance, manufactured by Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-445-6449 has 3 manufacturer part numbers on file: TX1024D3-2-5A (Hi-Shear Corporation), TX1024D3-2-5A (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), TX1024D3-2-5A (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc).
Key specifications for TX1024D3-2-5A: Head Height: 0.049 INCHES NOMINAL IN; Thread Length: 0.438 INCHES NOMINAL IN; Nominal Thread Diameter: 0.1900 INCHES IN; Head Style: FLAT COUNTERSUNK UNDERCUT. 13 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.