The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-535-1389, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Department of Defense Project Manager-Mobile Electric Power. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-535-1389 |
| Primary Part Number | 88-20260-43 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Department of Defense Project Manager-Mobile Electric Power |
| Status | ACTIVE |
| Head Height | 0.208 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN |
| Fastener Length | 1.098 INCHES NOMINAL IN |
| Thread Length | 0.880 INCHES NOMINAL IN |
| Supplementary Features | MRCS AATC JAB0.624 AND JAC0.676; AATDJAB0.035 AND JAC0.055 |
| Hole Configuration Style | HEXAGON FLATS |
| Material Document and Classification | ANSI B18.6.3 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.545 INCHES NOMINAL IN |
| Surface Treatment | ZINC OVERALL |
| Minimum Tensile Strength | 60000 POUNDS PER SQUARE INCH LBS |
| Thread Quantity Per Inch | 15 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Hole Quantity | 1 |
| 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 |
|---|---|
| 88-20260-43 PRIMARY | Department of Defense Project Manager-Mobile Electric Power (USA) |
| Reference | Meaning |
|---|---|
| B18.6.3 | 5/1 Secondary reference U.S. Government activity |
NSN 5305-01-535-1389 is a Screw,cap,hexagon Head, manufactured by Department of Defense Project Manager-Mobile Electric Power, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-535-1389 has 1 manufacturer part number on file: 88-20260-43 (Department of Defense Project Manager-Mobile Electric Power).
Key specifications for 88-20260-43: Head Height: 0.208 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN; Fastener Length: 1.098 INCHES NOMINAL IN; Thread Length: 0.880 INCHES NOMINAL IN; Supplementary Features: MRCS AATC JAB0.624 AND JAC0.676; AATDJAB0.035 AND JAC0.055. 16 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.