The Screw,instrument, cataloged under National Stock Number 5305-01-236-7556, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-236-7556 |
| Item Name | Screw,instrument |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.021 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN |
| Fastener Length | 0.072 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.056 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN |
| Hardness Rating | 28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.0315 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS722 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Nonstandard Thread Pitch Diameter | +0.0254 TO 0.0264 INCHES IN |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SLOT |
| Thread Quantity Per Inch | 127 |
| Material | STEEL COMP 416 OVERALL |
| Thread Series Designator | UNM |
| Head Diameter | 0.058 INCHES MINIMUM AND 0.062 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 |
| Reference | Meaning |
|---|---|
| NAS722CK80-080 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-236-7556 is a Screw,instrument, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-236-7556: Head Height: 0.021 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN; Fastener Length: 0.072 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.056 INCHES MINIMUM AND 0.080 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.