The Screw,close Tolerance, cataloged under National Stock Number 5305-01-412-1937, 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 14 specifications, cited from the U.S. Government catalog. The record lists 19 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 11 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-412-1937 |
| Primary Part Number | TX1026D3-3AF |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Fastener Length | 1.493 INCHES MINIMUM AND 1.523 INCHES MAXIMUM IN |
| Thread Length | 0.283 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.865 INCHES MINIMUM AND 1.885 INCHES MAXIMUM IN |
| Grip Diameter | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 99.0 RADIANS MINIMUM AND 101.0 RADIANS 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 | 0.345 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 |
|---|---|
| 3M1169D3-3AF | Linread Ltd (GBR) |
| 3M1169D3-3AF | Saturn Fasteners Inc (USA) |
| 3M1169D3-3AF | Huck International, Inc (USA) |
| 3M1169D3-3AF | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| 3M1169D3-3AF | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| 11827D3-3AF/11827D3-3F | Reid Products Inc. Dba Reid Products Inc (USA) |
| TX1026D3-3AF PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| TX1026D3-3AF PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 3M1169D3-3AF | Linread Northbridge (aircraft Product Division) (GBR) |
| TX1026D3-3AF PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| TX1026D3-3AF PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 3M1169D3-3AF | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| 3M1169D3-3AF | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| 3M1169D3-3AF | Reid Products Inc. Dba Reid Products Inc (USA) |
| 3M1169D3-3AF | Houston Precision Fasteners I Lp (USA) |
| 3M1169D3-3AF | West Coast Aerospace, Inc. (USA) |
| 3M1169D3-3AF | Heartland Precision Fasteners Inc (USA) |
| TX1026D3-3AF PRIMARY | Hi-Shear Corporation (USA) |
| 3M1169D3-3AF | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 3M1169D3-3AF | 5/2 Secondary reference U.S. Government activity |
| 3M1169D3-3F | 5/9 Secondary reference The Boeing Company Div Defense |
| TX1026D3-3AF | C/1 Advisory reference — outside the item-of-supply concept Sps Technologies Inc |
| TX1026D3-3AF | C/1 Advisory reference — outside the item-of-supply concept Fairchild Fasteners Europe - Vsd Gmbh |
| 3M1169D3-3AF | 5/2 Secondary reference U.S. Government activity |
| TX1026D3-3AF | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| TX1026D3-3AF | C/1 Advisory reference — outside the item-of-supply concept Sps Technologies, Llc Dba PB Fasteners |
| TX1026D3-3F | 5/9 Secondary reference Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| TX1026D3-3F | 5/9 Secondary reference Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| 3M1169D3-3AF | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| HP1169D3-3F | C/1 Advisory reference — outside the item-of-supply concept Heartland Precision Fasteners Inc |
NSN 5305-01-412-1937 is a Screw,close Tolerance, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-412-1937 has 19 manufacturer part numbers on file: 3M1169D3-3AF (Linread Ltd), 3M1169D3-3AF (Saturn Fasteners Inc), 3M1169D3-3AF (Huck International, Inc), 3M1169D3-3AF (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace), 3M1169D3-3AF (Fairchild Fasteners Europe - Vsd Gmbh) and 14 more.
Key specifications for TX1026D3-3AF: Fastener Length: 1.493 INCHES MINIMUM AND 1.523 INCHES MAXIMUM IN; Thread Length: 0.283 INCHES NOMINAL IN; Nominal Thread Diameter: 0.190 INCHES IN; Head Style: FLAT COUNTERSUNK. 14 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.