The Screw,machine, cataloged under National Stock Number 5305-01-343-3375, 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 3 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-343-3375 |
| Primary Part Number | HT4048-3-3 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Screw Surface Treatment | PASSIVATE |
| Fastener Length | 0.449 INCHES MINIMUM AND 0.479 INCHES MAXIMUM IN |
| Screw Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.251 INCHES MINIMUM AND 0.301 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | OVAL COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL COMP XM-13 |
| 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 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.296 INCHES MINIMUM AND 0.301 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE |
| 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 |
|---|---|
| HT4048-3-3 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HT4048-3-3 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HT4048-3-3 PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| ST3M713-3-3-1 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| HT4048-3-3 | 5/9 Secondary reference U.S. Government activity |
| HT4048-3-3 | C/1 Advisory reference — outside the item-of-supply concept Howmet Global Fastening Systems Inc |
| ST3M713-3-3-1 | 5/2 Secondary reference U.S. Government activity |
| HT4048-3-3 | 5/9 Secondary reference U.S. Government activity |
| HT4048-3-3 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
NSN 5305-01-343-3375 is a Screw,machine, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-343-3375 has 3 manufacturer part numbers on file: HT4048-3-3 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HT4048-3-3 (Sps Technologies, Llc Dba PB Fasteners), HT4048-3-3 (Hi-Shear Corporation).
Key specifications for HT4048-3-3: Screw Surface Treatment: PASSIVATE; Fastener Length: 0.449 INCHES MINIMUM AND 0.479 INCHES MAXIMUM IN; Screw Material Document and Classification: AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE; Thread Length: 0.251 INCHES MINIMUM AND 0.301 INCHES MAXIMUM 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.