The Screw,shoulder, cataloged under National Stock Number 5305-01-197-2545, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Designatronics Inc Stock Drive Products Div. Government technical data includes 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-197-2545 |
| Primary Part Number | 7Y5-CF4 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Designatronics Inc Stock Drive Products Div |
| Status | ACTIVE |
| Head Height | 0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM IN |
| Fastener Length | 0.449 INCHES MINIMUM AND 0.489 INCHES MAXIMUM IN |
| Shoulder Length | 0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.1238 INCHES MINIMUM AND 0.1248 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.289 INCHES MINIMUM AND 0.349 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | ASTM A484 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.240 INCHES MINIMUM AND 0.260 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 |
|---|---|
| 7Y5-CF4 | Designatronics Inc Stock Drive Products Div (USA) |
| Reference | Meaning |
|---|---|
| 807537-4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-197-2545 is a Screw,shoulder, manufactured by Designatronics Inc Stock Drive Products Div, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-197-2545 has 1 manufacturer part number on file: 7Y5-CF4 (Designatronics Inc Stock Drive Products Div).
Key specifications for 7Y5-CF4: Head Height: 0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM IN; Fastener Length: 0.449 INCHES MINIMUM AND 0.489 INCHES MAXIMUM IN; Shoulder Length: 0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 18 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.