The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-365-3166, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Martin-Baker Aircraft Company Limited. Government technical data includes 19 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-365-3166 |
| Primary Part Number | P35201 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Martin-Baker Aircraft Company Limited |
| Status | ACTIVE |
| Width Across Flats | 0.1562 INCHES MINIMUM AND 0.1587 INCHES MAXIMUM IN |
| Head Height | 0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Fastener Length | 1.013 INCHES MINIMUM AND 1.063 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Thread Length | 0.875 INCHES NOMINAL IN |
| Hardness Rating | 38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS1351 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Minimum Yield Strength | 150000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNRF |
| Head Diameter | 0.303 INCHES MINIMUM AND 0.313 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 |
|---|---|
| P35201 | Martin-Baker Aircraft Company Limited (GBR) |
| Reference | Meaning |
|---|---|
| 10113760 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| NAS1351-3-17P | 3/2 Design control — primary reference U.S. Government activity |
| FF-S-86 | 4/1 Identification reference U.S. Government activity |
NSN 5305-01-365-3166 is a Screw,cap,socket Head, manufactured by Martin-Baker Aircraft Company Limited, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-365-3166 has 1 manufacturer part number on file: P35201 (Martin-Baker Aircraft Company Limited).
Key specifications for P35201: Width Across Flats: 0.1562 INCHES MINIMUM AND 0.1587 INCHES MAXIMUM IN; Head Height: 0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN; Fastener Length: 1.013 INCHES MINIMUM AND 1.063 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY 2 FED SPEC ALL TREATMENT RESPONSES OVERALL. 19 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.