The Screw,close Tolerance, cataloged under National Stock Number 5305-00-263-8708, 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 17 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-263-8708 |
| Primary Part Number | 64228V4-14 |
| 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 | 16.0 MICROINCHES THREADS |
| Fastener Length | 1.285 INCHES MINIMUM AND 1.331 INCHES MAXIMUM IN |
| Thread Length | 0.400 INCHES MINIMUM AND 0.466 INCHES MAXIMUM IN |
| Material Document and Classification | NAS 621,6AL-4V ASSN STD 1ST MATERIAL RESPONSE OR AMS 4928 ASSN STD 2ND MATERIAL RESPONSE OVERALL V |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN |
| Grip Diameter | 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| 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 | 28 |
| Material | TITANIUM ALLOY OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.452 INCHES MINIMUM AND 0.510 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 |
|---|---|
| 64228V4-14 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| C792-4-14 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| C792-4-14 | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| C792-4-14 | 5/2 Secondary reference U.S. Government activity |
| C792-4-14 | 5/2 Secondary reference U.S. Government activity |
| 64228V4-14 | 5/9 Secondary reference Sps Technologies Inc |
| C792-4-14 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5305-00-263-8708 is a Screw,close Tolerance, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-263-8708 has 3 manufacturer part numbers on file: 64228V4-14 (Sps Technologies, Llc Dba PB Fasteners), C792-4-14 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), C792-4-14 (Howmet Global Fastening Systems Inc).
Key specifications for 64228V4-14: Surface Finish: 63.0 MICROINCHES GRIP; Surface Finish: 16.0 MICROINCHES THREADS; Fastener Length: 1.285 INCHES MINIMUM AND 1.331 INCHES MAXIMUM IN; Thread Length: 0.400 INCHES MINIMUM AND 0.466 INCHES MAXIMUM IN. 17 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.