The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-020-4653, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Simmonds Precision Products Inc. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-020-4653 |
| Primary Part Number | S6350CESCR812 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Simmonds Precision Products Inc |
| Status | ACTIVE |
| Fastener Length | 0.719 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Thread Length | 0.587 INCHES MINIMUM AND 0.691 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Locking Feature | PATCH THREADS |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SLOT |
| Countersink Angle | 82.0 DEGREES NOMINAL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.300 INCHES MINIMUM AND 0.332 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 | X |
| Part Number | Manufacturer |
|---|---|
| S6350CESCR812 PRIMARY | Simmonds Precision Products Inc (USA) |
| Reference | Meaning |
|---|---|
| S6350CESCR812 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5305-01-020-4653 is a Screw,cap,socket Head, manufactured by Simmonds Precision Products Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-020-4653 has 1 manufacturer part number on file: S6350CESCR812 (Simmonds Precision Products Inc).
Key specifications for S6350CESCR812: Fastener Length: 0.719 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN; Thread Length: 0.587 INCHES MINIMUM AND 0.691 INCHES MAXIMUM IN; Material Document and Classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Nominal Thread Diameter: 0.164 INCHES IN. 15 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.