The Screw,close Tolerance, cataloged under National Stock Number 5305-01-191-3131, 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 Div 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-191-3131 |
| Primary Part Number | PBF1356V08-1 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Fastener Length | 0.386 INCHES MINIMUM AND 0.416 INCHES MAXIMUM IN |
| Thread Length | 0.324 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 4967 COMP 6AL-4V ASSN STD SINGLE MATERIAL RESPONSE OVERALL V |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.062 INCHES NOMINAL IN |
| Grip Diameter | 0.1610 INCHES MINIMUM AND 0.1635 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | OFFSET CRUCIFORM (TORQUE SET) |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | TITANIUM ALLOY OVERALL |
| Thread Series Designator | UNJC |
| Head Diameter | 0.294 INCHES MINIMUM AND 0.332 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 |
|---|---|
| PBF1356V08-1 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| HR216V-08-1 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HR216V-08-1 PRIMARY | Hi-Shear Corporation (USA) |
| SC1777V08-1 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| GB510CH08V1 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation |
| MATF111V08-1 | C/1 Advisory reference — outside the item-of-supply concept Abounding Security Inc Div of Maa Corp |
| 122967V08-1 | 3/2 Design control — primary reference U.S. Government activity |
| GB510CH08V1 | 5/9 Secondary reference Aero Mechanical Fastening Systems Inc |
| GB510CH08V1 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
NSN 5305-01-191-3131 is a Screw,close Tolerance, manufactured by Sps Technologies Llc Dba PB Fasteners Div PB Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-191-3131 has 4 manufacturer part numbers on file: PBF1356V08-1 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), HR216V-08-1 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HR216V-08-1 (Hi-Shear Corporation), SC1777V08-1 (Howmet Global Fastening Systems Inc).
Key specifications for PBF1356V08-1: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Fastener Length: 0.386 INCHES MINIMUM AND 0.416 INCHES MAXIMUM IN; Thread Length: 0.324 INCHES MINIMUM AND 0.354 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.