The Screw,shoulder, cataloged under National Stock Number 5305-00-897-6509, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Ozark Aeroworks Llc. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-00-897-6509 |
| Primary Part Number | 1-080-298-01 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Ozark Aeroworks Llc |
| Status | ACTIVE |
| Width Across Flats | 0.219 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN |
| Head Height | 0.170 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Fastener Length | 0.330 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN |
| Shoulder Length | 0.030 INCHES MINIMUM AND 0.040 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | AMS 2485 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.220 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL |
| Hole Configuration Style | ROUND LONGITUDINAL HOLE |
| Material Document and Classification | AMS 6382,COMP 4140 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | OXIDE OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| Hole Diameter | 0.071 INCHES NOMINAL IN |
| Head Diameter | 0.428 INCHES MINIMUM AND 0.448 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 |
|---|---|
| 1-080-298-01 PRIMARY | Ozark Aeroworks Llc (USA) |
| Reference | Meaning |
|---|---|
| 1-080-298-01 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5305-00-897-6509 is a Screw,shoulder, manufactured by Ozark Aeroworks Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-897-6509 has 1 manufacturer part number on file: 1-080-298-01 (Ozark Aeroworks Llc).
Key specifications for 1-080-298-01: Width Across Flats: 0.219 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN; Head Height: 0.170 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN; Fastener Length: 0.330 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN; Shoulder Length: 0.030 INCHES MINIMUM AND 0.040 INCHES MAXIMUM FIRST SHOULDER IN. 22 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.