The Screw,close Tolerance, cataloged under National Stock Number 5305-01-446-8043, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 18 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-446-8043 |
| Primary Part Number | TX1027D3-11A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Head Height | 0.046 INCHES NOMINAL IN |
| Fastener Length | 1.032 INCHES NOMINAL IN |
| Thread Length | 0.345 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.687 INCHES NOMINAL IN |
| Grip Diameter | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| 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 | 0.293 INCHES MINIMUM AND 0.301 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 |
|---|---|
| TX1027D3-11A PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 3M1170D3-11A | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| 3M1170D3-11A PRIMARY | Huck International, Inc (USA) |
| 3M1170D3-11A | Howmet Global Fastening Systems Inc (USA) |
| 3M1170D3-11A | Houston Precision Fasteners I Lp (USA) |
| TX1027D3-11A PRIMARY | Hi-Shear Corporation (USA) |
| HP1170D3-11 PRIMARY | Heartland Precision Fasteners Inc (USA) |
| TX1027D3-11A PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 11825D3-11A | Reid Products Inc. Dba Reid Products Inc (USA) |
| 3M1170D3-11A PRIMARY | The Boeing Company Div Defense (USA) |
| 3M1170D3-11A PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| 3M1170D3-11A PRIMARY | Reid Products Inc. Dba Reid Products Inc (USA) |
| TX1027D3-11A PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| TX1027D3-11A PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 3M1170D3-11A | West Coast Aerospace, Inc. (USA) |
| 3M1170D3-11A | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| 3M1170D3-11A PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| 11845D3-11A | Reid Products Inc. Dba Reid Products Inc (USA) |
| Reference | Meaning |
|---|---|
| 3M1170D3-11A | 5/9 Secondary reference U.S. Government activity |
| TX1027D3-11A | C/1 Advisory reference — outside the item-of-supply concept Fairchild Fasteners Europe - Vsd Gmbh |
| TX1027D3-11A | 3/2 Design control — primary reference U.S. Government activity |
| TX1027D3-11A | 5/9 Secondary reference Sps Technologies Inc |
| TX1027D3-11A | C/1 Advisory reference — outside the item-of-supply concept Howmet Global Fastening Systems Inc |
| 10113821 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5305-01-446-8043 is a Screw,close Tolerance, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-446-8043 has 18 manufacturer part numbers on file: TX1027D3-11A (Sps Technologies, Llc Dba PB Fasteners), 3M1170D3-11A (Fairchild Fasteners Europe - Vsd Gmbh), 3M1170D3-11A (Huck International, Inc), 3M1170D3-11A (Howmet Global Fastening Systems Inc), 3M1170D3-11A (Houston Precision Fasteners I Lp) and 13 more.
Key specifications for TX1027D3-11A: Head Height: 0.046 INCHES NOMINAL IN; Fastener Length: 1.032 INCHES NOMINAL IN; Thread Length: 0.345 INCHES NOMINAL IN; 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.