The Screw,close Tolerance, cataloged under National Stock Number 5305-01-392-3413, 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 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-392-3413 |
| Primary Part Number | PBF1570-5-14 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| Status | ACTIVE |
| Fastener Length | 1.441 INCHES MINIMUM AND 1.471 INCHES MAXIMUM IN |
| Thread Length | 0.582 INCHES NOMINAL IN |
| Material Document and Classification | AMS 5844 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.864 INCHES MINIMUM AND 0.884 INCHES MAXIMUM IN |
| Grip Diameter | 0.3110 INCHES MINIMUM AND 0.3120 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 | 24 |
| Material | COBALT COMP MP-35-N OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.573 INCHES MINIMUM AND 0.635 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 |
|---|---|
| HR257-5-14 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 03A415-5-14 | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| PBF1570-5-14 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| HR257-5-14 | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| 125300-5-14 | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-392-3413 is a Screw,close Tolerance, manufactured by Sps Technologies Llc Dba PB Fasteners Div PB Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-392-3413 has 4 manufacturer part numbers on file: HR257-5-14 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), 03A415-5-14 (Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems), PBF1570-5-14 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), HR257-5-14 (Hi-Shear Corporation).
Key specifications for PBF1570-5-14: Fastener Length: 1.441 INCHES MINIMUM AND 1.471 INCHES MAXIMUM IN; Thread Length: 0.582 INCHES NOMINAL IN; Material Document and Classification: AMS 5844 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Nominal Thread Diameter: 0.312 INCHES 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.