The Screw,externally Relieved Body, cataloged under National Stock Number 5305-00-110-5709, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Dresser, Llc. Government technical data includes 18 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 | 5305-00-110-5709 |
| Primary Part Number | 28264A |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Dresser, Llc |
| Status | ACTIVE |
| Head Height | 0.281 INCHES NOMINAL IN |
| Fastener Length | 3.240 INCHES MINIMUM AND 3.260 INCHES MAXIMUM IN |
| Thread Length | 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN |
| Material Document and Classification | SAE GR 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 1.740 INCHES MINIMUM AND 1.760 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.438 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.345 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN |
| Width Between Flats | 0.625 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 2 |
| Internal Drive Style | W/O INTERNAL DRIVE |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 14 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 28264A PRIMARY | Dresser, Llc (USA) |
NSN 5305-00-110-5709 is a Screw,externally Relieved Body, manufactured by Dresser, Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-110-5709 has 1 manufacturer part number on file: 28264A (Dresser, Llc).
Key specifications for 28264A: Head Height: 0.281 INCHES NOMINAL IN; Fastener Length: 3.240 INCHES MINIMUM AND 3.260 INCHES MAXIMUM IN; Thread Length: 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN; Material Document and Classification: SAE GR 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 18 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.