The Screw,externally Relieved Body, cataloged under National Stock Number 5305-01-374-7647, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-374-7647 |
| Primary Part Number | 6692897-1 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Head Height | 0.380 INCHES NOMINAL IN |
| Fastener Length | 1.750 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | Q-P-416,TY2,CL2 FED SPEC 1ST TREATMENT RESPONSE OR MIL-C-87115,CL1,TY1 MIL SPEC 2ND TREATMENT RESPONSE OR ASTM-8633,TY2,SC1 ASSN STD 3RD TREATMENT RESPONSE OR MIL-C-83488,TY2,CL3 MIL SPEC 4TH TREATMENT RESPONSE OVERALL |
| Thread Length | 0.625 INCHES NOMINAL IN |
| First Diameter From Head | 0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | FILLISTER |
| Thread Direction | RIGHT-HAND |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 1.125 INCHES NOMINAL IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Surface Treatment | CADMIUM AND CHROMATE OR ZINC AND CHROMATE OR ZINC OR ALUMINUM AND CHROMATE OVERALL |
| Internal Drive Style | W/O INTERNAL DRIVE |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.562 INCHES NOMINAL 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 |
|---|---|
| 6692897-1 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6692897-1 | 5/9 Secondary reference Atlas Machine Company, Inc. |
NSN 5305-01-374-7647 is a Screw,externally Relieved Body, manufactured by Naval Sea Systems Command, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-374-7647 has 1 manufacturer part number on file: 6692897-1 (Naval Sea Systems Command).
Key specifications for 6692897-1: Head Height: 0.380 INCHES NOMINAL IN; Fastener Length: 1.750 INCHES NOMINAL IN; Surface Treatment Document and Classification: Q-P-416,TY2,CL2 FED SPEC 1ST TREATMENT RESPONSE OR MIL-C-87115,CL1,TY1 MIL SPEC 2ND TREATMENT RESPONSE OR ASTM-8633,TY2,SC1 ASSN STD 3RD TREATMENT RESPONSE OR MIL-C-83488,TY2,CL3 MIL SPEC 4TH TREATMENT RESPONSE OVERALL; Thread Length: 0.625 INCHES NOMINAL IN. 17 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.