The Setscrew, cataloged under National Stock Number 5305-00-274-2198, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-274-2198 |
| Primary Part Number | SP170 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Head Height | 0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN |
| Fastener Length | 0.297 INCHES NOMINAL IN |
| Thread Length | 0.297 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-B-637,COMP 2 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-639,COMP 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Point Style | CONE |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 18 |
| Material | COPPER ALLOY 482 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.427 INCHES MINIMUM AND 0.432 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 |
|---|---|
| SP170 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 44352PC5 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 44232PC3 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| TP170 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 63797PC2 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 46244PC5 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 5305-00-274-2198 is a Setscrew, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-274-2198 has 6 manufacturer part numbers on file: SP170 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 44352PC5 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 44232PC3 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), TP170 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 63797PC2 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier) and 1 more.
2 possible matches (shared part number, not a government interchangeability claim): 5930-00-839-7518, 9905-01-620-4877. Verify interchangeability with system specifications before substitution.
Key specifications for SP170: Head Height: 0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN; Fastener Length: 0.297 INCHES NOMINAL IN; Thread Length: 0.297 INCHES MAXIMUM IN; Material Document and Classification: QQ-B-637,COMP 2 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-639,COMP 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 14 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.