The Screw,close Tolerance, cataloged under National Stock Number 5305-01-025-6964, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-025-6964 |
| Primary Part Number | HT4017-08-7 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Fastener Length | 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN |
| Thread Length | 0.287 INCHES MINIMUM AND 0.337 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | OVAL COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN |
| Grip Diameter | 0.1630 INCHES MINIMUM AND 0.1635 INCHES MAXIMUM IN |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNJC |
| 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 |
|---|---|
| HT4017-08-7 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HT4017-08-7 PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| HT4017-08-7 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| HT4017-08-7 | 3/2 Design control — primary reference U.S. Government activity |
| HT4017-08-7 | 5/9 Secondary reference U.S. Government activity |
| ST3M649-08-7 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| HT4017-08-7 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| HT4017-08-7 | 5/9 Secondary reference U.S. Government activity |
| HT4017-08-7 | C/1 Advisory reference — outside the item-of-supply concept Howmet Global Fastening Systems Inc |
NSN 5305-01-025-6964 is a Screw,close Tolerance, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-025-6964 has 2 manufacturer part numbers on file: HT4017-08-7 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HT4017-08-7 (Hi-Shear Corporation).
Key specifications for HT4017-08-7: Fastener Length: 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN; Thread Length: 0.287 INCHES MINIMUM AND 0.337 INCHES MAXIMUM IN; Material Document and Classification: AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Nominal Thread Diameter: 0.164 INCHES IN. 15 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.