The Screw,close Tolerance, cataloged under National Stock Number 5305-01-337-3288, 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 24 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-337-3288 |
| Primary Part Number | HT359RNE7-20 |
| 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 |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Head Height | 0.130 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN |
| Fastener Length | 1.909 INCHES MINIMUM AND 1.956 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | BAC5861,CAGEC 81205 MFR REF SINGLE TREATMENT RESPONSE FASTENER |
| Thread Length | 0.675 INCHES NOMINAL IN |
| Material Document and Classification | AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE FASTENER |
| Nominal Thread Diameter | 0.438 INCHES IN |
| Features Provided | O RING |
| Head Style | FLAT COUNTERSUNK UNDERCUT |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN |
| Grip Diameter | 0.4365 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM IN |
| Surface Treatment | PHOSPHATE FASTENER |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR RING |
| Material | TITANIUM ALLOY UNS R56400 FASTENER |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.840 INCHES MINIMUM AND 0.888 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 |
|---|---|
| HT359RNE7-20 PRIMARY | Hi-Shear Corporation (USA) |
| HT359RNE7-20 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
NSN 5305-01-337-3288 is a Screw,close Tolerance, manufactured by Hi-Shear Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-337-3288 has 2 manufacturer part numbers on file: HT359RNE7-20 (Hi-Shear Corporation), HT359RNE7-20 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc).
Key specifications for HT359RNE7-20: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Head Height: 0.130 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN. 24 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.