The Screw,shoulder, cataloged under National Stock Number 5305-00-079-8474, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is California Screw Products Corp.. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-00-079-8474 |
| Primary Part Number | NAS1297-06-7 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | California Screw Products Corp. |
| Status | ACTIVE |
| Head Height | 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN |
| Fastener Length | 0.800 INCHES MINIMUM AND 0.840 INCHES MAXIMUM IN |
| Shoulder Length | 0.448 INCHES MINIMUM AND 0.458 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.186 INCHES MINIMUM AND 0.189 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.342 INCHES MINIMUM AND 0.392 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS1297 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Width Between Flats | 0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | W/O INTERNAL DRIVE |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4130 OR STEEL COMP 4037 OVERALL |
| Thread Series Designator | UNJC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| NAS1297-06-7 | California Screw Products Corp. (USA) |
| NAS1297-06-7 | Lfc Industries, Inc. (USA) |
| NAS1297-06-7 | Mac Fasteners, Inc. Dba Mac Fasteners Inc (USA) |
| Reference | Meaning |
|---|---|
| NAS1297-06-7 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5305-00-079-8474 is a Screw,shoulder, manufactured by California Screw Products Corp., classified under FSC 5305, Screws. Status: active.
NSN 5305-00-079-8474 has 3 manufacturer part numbers on file: NAS1297-06-7 (California Screw Products Corp.), NAS1297-06-7 (Lfc Industries, Inc.), NAS1297-06-7 (Mac Fasteners, Inc. Dba Mac Fasteners Inc).
Key specifications for NAS1297-06-7: Head Height: 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN; Fastener Length: 0.800 INCHES MINIMUM AND 0.840 INCHES MAXIMUM IN; Shoulder Length: 0.448 INCHES MINIMUM AND 0.458 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 20 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.