The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-490-5975, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-490-5975 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Fastener Length | 1.500 INCHES NOMINAL IN |
| Material Document and Classification | ANSI B18.3 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.562 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 12 |
| Material | NICKEL ALLOY OVERALL |
| Thread Series Designator | UNRC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 0.562-12UNRC-3AX1.500LG NICUAL | 5/1 Secondary reference U.S. Government activity |
| 6406424-68 | 5/9 Secondary reference Naval Sea Systems Command |
| 0.562-12UNRC-3AX1.500LG NICUAL | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 211092305 | 3/2 Design control — primary reference U.S. Government activity |
| 167-6406424 FIND 68 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 5305-01-490-5975 is a Screw,cap,socket Head, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-490-5975: Fastener Length: 1.500 INCHES NOMINAL IN; Material Document and Classification: ANSI B18.3 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Nominal Thread Diameter: 0.562 INCHES IN; Head Style: FLAT COUNTERSUNK. 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.