The Screw,externally Relieved Body, cataloged under National Stock Number 5305-01-193-7586, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Varo Llc. Government technical data includes 21 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-193-7586 |
| Primary Part Number | 105C034P1 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Varo Llc |
| Status | ACTIVE |
| Head Height | 0.334 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN |
| Point Length | 0.275 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN |
| Fastener Length | 1.446 INCHES MINIMUM AND 1.456 INCHES MAXIMUM IN |
| Thread Length | 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN |
| Hardness Rating | 35.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Point Chamfer Angle | 59.0 DEGREES MINIMUM AND 61.0 DEGREES MAXIMUM |
| First Diameter From Head | 0.297 INCHES MINIMUM AND 0.301 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | HEXAGON COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Point Style | CONE |
| Width Between Flats | 0.807 INCHES MINIMUM AND 0.817 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.494 INCHES MINIMUM AND 0.504 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Internal Drive Style | SLOT |
| Countersink Angle | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 630 OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 105C034P1 PRIMARY | Varo Llc (USA) |
NSN 5305-01-193-7586 is a Screw,externally Relieved Body, manufactured by Varo Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-193-7586 has 1 manufacturer part number on file: 105C034P1 (Varo Llc).
Key specifications for 105C034P1: Head Height: 0.334 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN; Point Length: 0.275 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN; Fastener Length: 1.446 INCHES MINIMUM AND 1.456 INCHES MAXIMUM IN; Thread Length: 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN. 21 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.