The Setscrew, cataloged under National Stock Number 5305-01-535-2857, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Brighton-Best Socket Screw Mfg Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-535-2857 |
| Primary Part Number | 101289-100 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Brighton-Best Socket Screw Mfg Inc |
| Status | ACTIVE |
| Fastener Length | 1.250 INCHES NOMINAL IN |
| Thread Length | 1.250 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | HEADLESS (SETSCREW) |
| Thread Direction | RIGHT-HAND |
| Point Style | FLAT |
| Color | BLACK OVERALL |
| Surface Treatment | OXIDE OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 101289-100 PRIMARY | Brighton-Best Socket Screw Mfg Inc (USA) |
| 17-2-0988-1 | Brighton-Best Socket Screw Mfg Inc (USA) |
| Reference | Meaning |
|---|---|
| 17-2-0988-1 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5305-01-535-2857 is a Setscrew, manufactured by Brighton-Best Socket Screw Mfg Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-535-2857 has 2 manufacturer part numbers on file: 101289-100 (Brighton-Best Socket Screw Mfg Inc), 17-2-0988-1 (Brighton-Best Socket Screw Mfg Inc).
Key specifications for 101289-100: Fastener Length: 1.250 INCHES NOMINAL IN; Thread Length: 1.250 INCHES NOMINAL IN; Nominal Thread Diameter: 0.190 INCHES IN; Head Style: HEADLESS (SETSCREW). 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.