The Screw,close Tolerance, cataloged under National Stock Number 5305-01-129-9811, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Hi-Shear Corporation. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 10 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-129-9811 |
| Primary Part Number | HT4041-3-1-4 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Head Height | 0.013 INCHES MAXIMUM IN |
| Fastener Length | 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN |
| Thread Length | 0.163 INCHES MINIMUM AND 0.213 INCHES MAXIMUM IN |
| Material Document and Classification | 23-112,TY D,FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FILLISTER COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.052 INCHES MINIMUM AND 0.072 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 | 0.297 INCHES MINIMUM AND 0.302 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 |
|---|---|
| HT4041-3-1-4 | Huck International, Inc (USA) |
| 3M707-3-1-4 | The Boeing Company Div Defense (USA) |
| HT4041-3-1-4 PRIMARY | Hi-Shear Corporation (USA) |
| 3M707-3-1-4 | Howmet Global Fastening Systems Inc (USA) |
| 3M707-3-1-4 | West Coast Aerospace, Inc. (USA) |
| 3M707-3-1-4 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| HT4041-3-1-4 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 3M707-3-1-4 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 11873-3-1-4 | Reid Products Inc. Dba Reid Products Inc (USA) |
| HT4041-3-1-4 | Mil-Bar Plastics, Inc. Dba Mil-Bar Plastics Inc (USA) |
| Reference | Meaning |
|---|---|
| HT4041-3-1-4 | 5/9 Secondary reference U.S. Government activity |
| HT4041-3-1-4 | 5/9 Secondary reference U.S. Government activity |
| HT4041-3-1-4 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| HT4041-3-1-4 | 5/2 Secondary reference U.S. Government activity |
| 10115226 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5305-01-129-9811 is a Screw,close Tolerance, manufactured by Hi-Shear Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-129-9811 has 10 manufacturer part numbers on file: HT4041-3-1-4 (Huck International, Inc), 3M707-3-1-4 (The Boeing Company Div Defense), HT4041-3-1-4 (Hi-Shear Corporation), 3M707-3-1-4 (Howmet Global Fastening Systems Inc), 3M707-3-1-4 (West Coast Aerospace, Inc.) and 5 more.
Key specifications for HT4041-3-1-4: Head Height: 0.013 INCHES MAXIMUM IN; Fastener Length: 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN; Thread Length: 0.163 INCHES MINIMUM AND 0.213 INCHES MAXIMUM IN; Material Document and Classification: 23-112,TY D,FSCM 76301 MFR REF 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.