The Setscrew, cataloged under National Stock Number 5305-00-489-6530, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rotary and Mission Systems. Government technical data includes 16 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-489-6530 |
| Primary Part Number | 6872271-1 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| Status | ACTIVE |
| Point Diameter | 0.180 INCHES MINIMUM AND 0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM0.190 INCHES MAXIMUM IN |
| Head Height | 0.580 INCHES NOMINAL IN |
| Point Length | 0.213 INCHES NOMINAL0.213 INCHES NOMINAL IN |
| Fastener Length | 4.255 INCHES NOMINAL4.255 INCHES NOMINAL IN |
| Thread Length | 0.697 INCHES MINIMUM IN |
| Material Document and Classification | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALLASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEXAGONHEXAGON |
| Thread Direction | RIGHT-HAND |
| Point Style | BALL |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Internal Drive Style | W/O INTERNAL DRIVE |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 2828 |
| Material | STEEL COMP 416 OVERALL |
| Thread Series Designator | UNFUNF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5305-00-489-6530 is a Setscrew, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-489-6530 has 2 manufacturer part numbers on file: 6872271-1 (Lockheed Martin Corporation Div Rotary and Mission Systems), 687227-1 (Lockheed Martin Corporation Div Rotary and Mission Systems).
Key specifications for 6872271-1: Point Diameter: 0.180 INCHES MINIMUM AND 0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM0.190 INCHES MAXIMUM IN; Head Height: 0.580 INCHES NOMINAL IN; Point Length: 0.213 INCHES NOMINAL0.213 INCHES NOMINAL IN; Fastener Length: 4.255 INCHES NOMINAL4.255 INCHES NOMINAL IN. 16 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.