The Setscrew, cataloged under National Stock Number 5305-01-173-3533, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Fluid Handling Llc. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5305-01-173-3533 |
| Primary Part Number | 2-170-2-06-016-06 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Fluid Handling Llc |
| Status | ACTIVE |
| Head Height | 0.270 INCHES MINIMUM AND 0.293 INCHES MAXIMUM IN |
| Fastener Length | 1.250 INCHES NOMINAL IN |
| Material Document and Classification | QQ-C-591 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | SQUARE |
| Thread Direction | RIGHT-HAND |
| Point Style | CUP |
| Width Between Flats | 0.362 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 60000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | W/O INTERNAL DRIVE |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 16 |
| Material | COPPER ALLOY 651 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 2-170-2-06-016-06 PRIMARY | Fluid Handling Llc (USA) |
| Reference | Meaning |
|---|---|
| 2-170-2-06-016-06 | 5/9 Secondary reference Itt Corporation Dba Itt Standard |
NSN 5305-01-173-3533 is a Setscrew, manufactured by Fluid Handling Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-173-3533 has 1 manufacturer part number on file: 2-170-2-06-016-06 (Fluid Handling Llc).
1 possible match (shared part number, not a government interchangeability claim): 5305-01-266-0573. Verify interchangeability with system specifications before substitution.
Key specifications for 2-170-2-06-016-06: Head Height: 0.270 INCHES MINIMUM AND 0.293 INCHES MAXIMUM IN; Fastener Length: 1.250 INCHES NOMINAL IN; Material Document and Classification: QQ-C-591 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Nominal Thread Diameter: 0.375 INCHES IN. 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.