The Screw,externally Relieved Body, cataloged under National Stock Number 5305-01-452-9035, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Navy, United States Department of the Spawar Dba Space and Naval Wafare Command. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5305-01-452-9035 |
| Primary Part Number | 17649 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Navy, United States Department of the Spawar Dba Space and Naval Wafare Command |
| Status | ACTIVE |
| Head Height | 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN |
| Fastener Length | 0.512 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-S-13924, CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.375 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-S-7720, COND A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.097 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | FLAT FILLISTER |
| Thread Direction | RIGHT-HAND |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.172 INCHES MINIMUM AND 0.202 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Surface Treatment | OXIDE OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.302 INCHES MINIMUM AND 0.317 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 |
|---|---|
| 17649 PRIMARY | Navy, United States Department of the Spawar Dba Space and Naval Wafare Command (USA) |
| Reference | Meaning |
|---|---|
| C-42SV0138 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5305-01-452-9035 is a Screw,externally Relieved Body, manufactured by Navy, United States Department of the Spawar Dba Space and Naval Wafare Command, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-452-9035 has 1 manufacturer part number on file: 17649 (Navy, United States Department of the Spawar Dba Space and Naval Wafare Command).
1 possible match (shared part number, not a government interchangeability claim): 2540-01-727-2612. Verify interchangeability with system specifications before substitution.
Key specifications for 17649: Head Height: 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN; Fastener Length: 0.512 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-S-13924, CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.375 INCHES MAXIMUM IN. 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.