The Screw,externally Relieved Body, cataloged under National Stock Number 5305-00-421-9236, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-00-421-9236 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.241 INCHES MINIMUM AND 0.261 INCHES MAXIMUM IN |
| Fastener Length | 0.713 INCHES MINIMUM AND 0.723 INCHES MAXIMUM IN |
| Thread Length | 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN |
| Material Document and Classification | LEDLOY A,SINGER CO. THE BUSINESS MACHINE DIVISION MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.185 INCHES MINIMUM AND 0.195 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 0.432 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | KNURLED NO. 1 |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.395 INCHES MINIMUM AND 0.408 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 2 |
| Surface Treatment | CADMIUM OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.373 INCHES MINIMUM AND 0.375 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 |
|---|---|
| 4000888 | 3/9 Design control — primary reference H & E Venture, Llc |
NSN 5305-00-421-9236 is a Screw,externally Relieved Body, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-00-421-9236: Head Height: 0.241 INCHES MINIMUM AND 0.261 INCHES MAXIMUM IN; Fastener Length: 0.713 INCHES MINIMUM AND 0.723 INCHES MAXIMUM IN; Thread Length: 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN; Material Document and Classification: LEDLOY A,SINGER CO. THE BUSINESS MACHINE DIVISION MFR REF SINGLE MATERIAL RESPONSE 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.