The Screw,machine, cataloged under National Stock Number 5305-01-515-7701, 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 15 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-515-7701 |
| Primary Part Number | MBEU146484 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Martin-Baker Aircraft Company Limited |
| Status | ACTIVE |
| Head Height | 0.095 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN |
| External Thread Tolerance Class | 6G G |
| Fastener Length | 0.312 INCHES NOMINAL IN |
| Screw Material Document and Classification | QQ-S-763,CLASS 304B FED SPEC SINGLE MATERIAL RESPONSE |
| Thread Pitch in Millimeters | 0.7 |
| Thread Length | 0.275 INCHES NOMINAL IN |
| Locking Feature Material | PLASTIC POLYAMIDE NYLON |
| Nominal Thread Diameter | 4.0 MILLIMETERS MM |
| Head Style | FLAT FILLISTER |
| Thread Direction | RIGHT-HAND |
| Locking Feature | PELLET |
| Screw Material | STEEL COMP 304 |
| Internal Drive Style | SLOT |
| Thread Series Designator | M |
| Head Diameter | 0.180 INCHES MINIMUM AND 0.186 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 | F |
| Part Number | Manufacturer |
|---|---|
| MBEU146484 | Martin-Baker Aircraft Company Limited (GBR) |
| Reference | Meaning |
|---|---|
| 10177943 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| MBEU146484 | 3/9 Design control — primary reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 5305-01-515-7701 is a Screw,machine, manufactured by Martin-Baker Aircraft Company Limited, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-515-7701 has 1 manufacturer part number on file: MBEU146484 (Martin-Baker Aircraft Company Limited).
Key specifications for MBEU146484: Head Height: 0.095 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN; External Thread Tolerance Class: 6G G; Fastener Length: 0.312 INCHES NOMINAL IN; Screw Material Document and Classification: QQ-S-763,CLASS 304B FED SPEC SINGLE MATERIAL RESPONSE. 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.