The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-503-9432, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Velan Valve Corp.. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-503-9432 |
| Primary Part Number | 8890-920ITEM21 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Velan Valve Corp. |
| Status | ACTIVE |
| Fastener Length | 3.250 INCHES NOMINAL IN |
| Material Document and Classification | ASTM A574 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 1.000 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | HEXAGON |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 8 |
| Material | STEEL UNS K03104 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 9512-012-105 | Velan Valve Corp. (USA) |
| 8890-920ITEM21 PRIMARY | Velan Valve Corp. (USA) |
NSN 5305-01-503-9432 is a Screw,cap,socket Head, manufactured by Velan Valve Corp., classified under FSC 5305, Screws. Status: active.
NSN 5305-01-503-9432 has 2 manufacturer part numbers on file: 9512-012-105 (Velan Valve Corp.), 8890-920ITEM21 (Velan Valve Corp.).
Key specifications for 8890-920ITEM21: Fastener Length: 3.250 INCHES NOMINAL IN; Material Document and Classification: ASTM A574 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Nominal Thread Diameter: 1.000 INCHES IN; Head Style: FLAT CHAMFER. 10 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.