The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-641-5625, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 21 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-641-5625 |
| Primary Part Number | 8-52V-01 ITEM 68 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Width Across Flats | 0.141 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Head Height | 0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER |
| Thread Length | 0.500 INCHES NOMINAL IN |
| Hardness Rating | 80.0 ROCKWELL B MINIMUM OVERALL |
| Material Document and Classification | ASTM A493 ASSN STD SINGLE MATERIAL RESPONSE FASTENER |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Locking Feature | PELLET THREADS |
| Surface Treatment | PASSIVATE FASTENER |
| Minimum Tensile Strength | 80000 POUNDS PER SQUARE INCH LBS |
| Minimum Yield Strength | 30000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | PLASTIC POLYAMIDE NYLON LOCKING FEATURE |
| Material | STEEL COMP 302 OR STEEL COMP 305 OR STEEL COMP 316 OR STEEL COMP 384 OR STEEL COMP XM-7 FASTENER |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.262 INCHES MINIMUM AND 0.270 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 |
|---|---|
| 8-52V-01 ITEM 68 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| NAS1352C08LN8 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-641-5625 is a Screw,cap,socket Head, manufactured by Naval Sea Systems Command, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-641-5625 has 1 manufacturer part number on file: 8-52V-01 ITEM 68 (Naval Sea Systems Command).
Key specifications for 8-52V-01 ITEM 68: Width Across Flats: 0.141 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Head Height: 0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN; Fastener Length: 0.500 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER. 21 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.