The Screw,close Tolerance, cataloged under National Stock Number 5305-01-138-7740, 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 19 specifications, cited from the U.S. Government catalog. The record lists 11 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-138-7740 |
| Primary Part Number | HT4041-5-11-6 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Fastener Length | 1.048 INCHES MINIMUM AND 1.078 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.350 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN |
| Material Document and Classification | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.676 INCHES MINIMUM AND 0.698 INCHES MAXIMUM IN |
| Grip Diameter | 0.3115 INCHES MINIMUM AND 0.3120 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 | 24 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.429 INCHES MINIMUM AND 0.477 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 |
|---|---|
| HT4041-5-11-6 | Howmet Global Fastening Systems Inc (USA) |
| HT4041-5-11-6 | Huck International, Inc (USA) |
| HT4041-5-11-6 | West Coast Aerospace, Inc. (USA) |
| HT4041-5-11-6 PRIMARY | Hi-Shear Corporation (USA) |
| HT4041-5-11-6 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HT4041-5-11-6 | Fastener Technology Corp (USA) |
| HT4041-5-11-6 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HT4041-5-11-6 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HT4041-5-11-6 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| 11873-5-11-6 | Reid Products Inc. Dba Reid Products Inc (USA) |
| 3M707-5-11-6 | Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc (USA) |
| Reference | Meaning |
|---|---|
| 10115399 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| HT4041-5-11-6 | 5/9 Secondary reference U.S. Government activity |
| HT4041-5-11-6 | 5/9 Secondary reference U.S. Government activity |
| 3M707-5-11-6 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| HT4041-5-11-6 | 5/9 Secondary reference U.S. Government activity |
| HT4041-5-11-6 | 5/9 Secondary reference Sps Technologies Inc |
| 3M707-5-11-6 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-138-7740 is a Screw,close Tolerance, manufactured by Hi-Shear Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-138-7740 has 11 manufacturer part numbers on file: HT4041-5-11-6 (Howmet Global Fastening Systems Inc), HT4041-5-11-6 (Huck International, Inc), HT4041-5-11-6 (West Coast Aerospace, Inc.), HT4041-5-11-6 (Hi-Shear Corporation), HT4041-5-11-6 (Sps Technologies Ltd, Tj Brooks Division) and 6 more.
Key specifications for HT4041-5-11-6: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Fastener Length: 1.048 INCHES MINIMUM AND 1.078 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 19 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.