The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-078-9640, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Nylok Llc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-078-9640 |
| Primary Part Number | M32CR640-8E |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Nylok Llc |
| Status | ACTIVE |
| Thread Quantity Per Inch | 40 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNF |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Diameter | 0.257 INCHES MINIMUM AND 0.279 INCHES MAXIMUM IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Thread Class | 2A A |
| Countersink Angle | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| Thread Length | 0.417 INCHES MINIMUM IN |
| Internal Drive Style | SLOT |
| Locking Feature | PATCH OR STRIP THREADS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| M32CR640-8E PRIMARY | Nylok Llc (USA) |
| MIL-DTL-18240F(1) | Nylok Llc (USA) |
| FF-S-92C(1) | Nylok Llc (USA) |
NSN 5305-00-078-9640 is a Screw,cap,socket Head, manufactured by Nylok Llc, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-078-9640 has 3 cross-referenced part numbers: M32CR640-8E (Nylok Llc), MIL-DTL-18240F(1) (Nylok Llc), FF-S-92C(1) (Nylok Llc).
There is 1 known substitute for 5305-00-078-9640: 5305-00-936-4983. Verify interchangeability with system specifications before substitution.
Key specifications for M32CR640-8E: Thread Quantity Per Inch: 40; Material: STEEL CORROSION RESISTING OVERALL; Thread Series Designator: UNF; Fastener Length: 0.500 INCHES NOMINAL IN. 14 total characteristics are documented in the Federal Logistics Information System.