The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-754-3131, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Nylok Llc. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-754-3131 |
| Primary Part Number | NK525-10R10 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Nylok Llc |
| Status | ACTIVE |
| Extended Washer Thickness | 0.025 INCHES NOMINAL IN |
| Head Height | 0.094 INCHES NOMINAL IN |
| Fastener Length | 0.625 INCHES NOMINAL IN |
| Extended Washer Diameter | 0.437 INCHES NOMINAL IN |
| Thread Length | 0.219 INCHES MINIMUM IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | ROUND EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Locking Feature | PATCH OR STRIP THREADS |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.375 INCHES NOMINAL IN |
| 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 |
|---|---|
| NK525-10R10 PRIMARY | Nylok Llc (USA) |
| NK525-10R10 | Nylok Llc (USA) |
| 9167897 | Us Army Aviation and Missile Command (USA) |
NSN 5305-00-754-3131 is a Screw,cap,socket Head, manufactured by Nylok Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-754-3131 has 3 manufacturer part numbers on file: NK525-10R10 (Nylok Llc), NK525-10R10 (Nylok Llc), 9167897 (Us Army Aviation and Missile Command).
Key specifications for NK525-10R10: Extended Washer Thickness: 0.025 INCHES NOMINAL IN; Head Height: 0.094 INCHES NOMINAL IN; Fastener Length: 0.625 INCHES NOMINAL IN; Extended Washer Diameter: 0.437 INCHES NOMINAL IN. 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.