The Screw,machine, cataloged under National Stock Number 5305-01-314-2458, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-314-2458 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.152 INCHES MINIMUM AND 0.165 INCHES MAXIMUM IN |
| Fastener Length | 0.750 INCHES NOMINAL IN |
| Thread Length | 0.650 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | BINDING |
| Thread Direction | RIGHT-HAND |
| Nondefinitive Spec/std Data | 1 TYPE AND 8S STYLE |
| Screw Material | STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 303 PLUS X OR STEEL COMP 303SE OR STEEL COMP 303CU OR STEEL COMP 303MA OR STEEL COMP 304 OR STEEL COMP 304L |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.498 INCHES MINIMUM AND 0.525 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 |
| Reference | Meaning |
|---|---|
| 1/4-20UNC-2A X 3/4 IN. | 3/1 Design control — primary reference U.S. Government activity |
| 1/4-20UNC-2A X 3/4 LG | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 7014-6938547 SH 2 PC 5 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 122-5589566 PC 29 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| FF-S-92 | 4/1 Identification reference U.S. Government activity |
| 0.250-2OUNC2AX0.750IN LG STEEL | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 701-5941244 PC 36 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| FFS92B TY1STY8S -3/4INLG | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 701-6938562 SH 1 PC 46 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 0.250-20UNC2AX0 .750IN LG STEEL | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5305-01-314-2458 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5305-01-331-0473. Verify interchangeability with system specifications before substitution.
Key specifications for 5305-01-314-2458: Head Height: 0.152 INCHES MINIMUM AND 0.165 INCHES MAXIMUM IN; Fastener Length: 0.750 INCHES NOMINAL IN; Thread Length: 0.650 INCHES NOMINAL IN; Nominal Thread Diameter: 0.250 INCHES IN. 13 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.