The Screw,assembled Washer, cataloged under National Stock Number 5305-01-688-2255, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Fastener Technology Corp. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-688-2255 |
| Primary Part Number | FTC7761N02-4C |
| Item Name | Screw,assembled Washer |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Fastener Technology Corp |
| Status | ACTIVE |
| Width Across Flats | 0.78 INCHES NOMINAL IN |
| Head Height | 0.086 INCHES MAXIMUM IN |
| Fastener Length | 0.250 INCHES NOMINAL IN |
| Primary Washer Outside Diameter | 0.140 INCHES MAXIMUM IN |
| Thread Length | 0.178 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.0860 INCHES IN |
| Head Style | PAN NO. 2 |
| Primary Washer Style | FLAT |
| Thread Direction | RIGHT-HAND |
| Primary Washer Material Thickness | 0.022 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 592 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 56 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNRC |
| Washer Quantity | 1 |
| Head Diameter | 0.140 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 | V |
| Part Number | Manufacturer |
|---|---|
| FTC7761N02-4C PRIMARY | Fastener Technology Corp (USA) |
| Reference | Meaning |
|---|---|
| FTC7761 | D/9 Drawing number reference only Fastener Technology Corp |
NSN 5305-01-688-2255 is a Screw,assembled Washer, manufactured by Fastener Technology Corp, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-688-2255 has 1 manufacturer part number on file: FTC7761N02-4C (Fastener Technology Corp).
Key specifications for FTC7761N02-4C: Width Across Flats: 0.78 INCHES NOMINAL IN; Head Height: 0.086 INCHES MAXIMUM IN; Fastener Length: 0.250 INCHES NOMINAL IN; Primary Washer Outside Diameter: 0.140 INCHES MAXIMUM IN. 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.