The Screw,machine, cataloged under National Stock Number 5305-01-176-8170, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Ufc Aerospace Europe Limited. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-176-8170 |
| Primary Part Number | A.206/A16 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Ufc Aerospace Europe Limited |
| Status | ACTIVE |
| Fastener Length | 0.500 INCHES MINIMUM IN |
| Screw Material Document and Classification | BS 970 EN.58 SERIES NATIONAL SPEC SINGLE MATERIAL RESPONSE |
| Thread Length | 0.401 INCHES MINIMUM AND 0.451 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL CORROSION RESISTING |
| Internal Drive Style | SLOT |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.191 INCHES MINIMUM AND 0.206 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 |
|---|---|
| A.206/A16 PRIMARY | Ufc Aerospace Europe Limited (GBR) |
| A.206/A16 PRIMARY | Bsi Standards Limited (GBR) |
| Reference | Meaning |
|---|---|
| A206A16 | 5/9 Secondary reference British Aerospace North America Inc |
| MIL-STD-130 | 4/1 Identification reference U.S. Government activity |
NSN 5305-01-176-8170 is a Screw,machine, manufactured by Ufc Aerospace Europe Limited, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-176-8170 has 2 manufacturer part numbers on file: A.206/A16 (Ufc Aerospace Europe Limited), A.206/A16 (Bsi Standards Limited).
Key specifications for A.206/A16: Fastener Length: 0.500 INCHES MINIMUM IN; Screw Material Document and Classification: BS 970 EN.58 SERIES NATIONAL SPEC SINGLE MATERIAL RESPONSE; Thread Length: 0.401 INCHES MINIMUM AND 0.451 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.112 INCHES IN. 13 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.