The Screw,close Tolerance, cataloged under National Stock Number 5305-00-100-6311, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-100-6311 |
| Primary Part Number | 67077-5-8 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES GRIP |
| Surface Finish | 63.0 MICROINCHES BEARING SURFACE OF HEAD |
| Head Height | 0.203 INCHES MINIMUM AND 0.218 INCHES MAXIMUM IN |
| Fastener Length | 0.954 INCHES MINIMUM AND 1.001 INCHES MAXIMUM IN |
| Thread Length | 0.470 INCHES MINIMUM IN |
| Material Document and Classification | NAS 621 COMP 6AL-4V ASSN STD SINGLE MATERIAL RESPONSE OR AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE OVERALL V |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.500 INCHES NOMINAL IN |
| Grip Diameter | 0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HIGH-TORQUE |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | TITANIUM ALLOY OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.594 INCHES MINIMUM AND 0.615 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 |
|---|---|
| 67077-5-8 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HT193LB5-8 PRIMARY | Hi-Shear Corporation (USA) |
| GB511J5-8 | Northrop Grumman Systems Corporation (USA) |
| HT193LB5-8 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| Reference | Meaning |
|---|---|
| 67077-5-8 | 5/9 Secondary reference Sps Technologies Inc |
| HT193LB6-7 | C/1 Advisory reference — outside the item-of-supply concept Hi-Shear Corporation |
| HT8099-5-8 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-00-100-6311 is a Screw,close Tolerance, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-100-6311 has 4 manufacturer part numbers on file: 67077-5-8 (Sps Technologies, Llc Dba PB Fasteners), HT193LB5-8 (Hi-Shear Corporation), GB511J5-8 (Northrop Grumman Systems Corporation), HT193LB5-8 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc).
Key specifications for 67077-5-8: Surface Finish: 63.0 MICROINCHES GRIP; Surface Finish: 63.0 MICROINCHES BEARING SURFACE OF HEAD; Head Height: 0.203 INCHES MINIMUM AND 0.218 INCHES MAXIMUM IN; Fastener Length: 0.954 INCHES MINIMUM AND 1.001 INCHES MAXIMUM IN. 18 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.