The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-556-7919, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-556-7919 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Fastener Length | 1.125 INCHES NOMINAL IN |
| Material | NICKEL ALLOY 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 |
| Reference | Meaning |
|---|---|
| 7108864-9 | 5/9 Secondary reference U.S. Government activity |
| 7108864A-9 | 3/2 Design control — primary reference U.S. Government activity |
| 0.625-11UNC-2AX1.250LG NICUAL | 5/1 Secondary reference U.S. Government activity |
| 245-7108864 ITEM 9 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 5305-01-556-7919 is a Screw,cap,hexagon Head, classified under FSC 5305, Screws. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5305-01-621-8159, 5305-01-670-9379. Verify interchangeability with system specifications before substitution.
Key specifications for 5305-01-556-7919: Fastener Length: 1.125 INCHES NOMINAL IN; Special Features: 0.625 11UNC 2AX 1.125 LG; Part Name Assigned by Controlling Agency: SCREW CAP SLF LCK; End Item Identification: CAP ASSEMBLY. 3 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.