The Screw,machine, cataloged under National Stock Number 5305-00-487-7121, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Honeywell Intl Inc Defense Avionics Systems. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-487-7121 |
| Primary Part Number | PB52057-2 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Honeywell Intl Inc Defense Avionics Systems |
| Status | ACTIVE |
| Head Height | 0.046 INCHES NOMINAL IN |
| Fastener Length | 0.218 INCHES NOMINAL IN |
| Screw Material Document and Classification | AMS 4610 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.168 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.073 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Screw Material | COPPER ALLOY 360 |
| Internal Drive Style | SLOT |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 72 |
| Thread Series Designator | UNF |
| Head Diameter | 0.090 INCHES MINIMUM AND 0.100 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 |
|---|---|
| PB52057-2 PRIMARY | Honeywell Intl Inc Defense Avionics Systems (USA) |
| Reference | Meaning |
|---|---|
| PB52057-2 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems |
NSN 5305-00-487-7121 is a Screw,machine, manufactured by Honeywell Intl Inc Defense Avionics Systems, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-487-7121 has 1 manufacturer part number on file: PB52057-2 (Honeywell Intl Inc Defense Avionics Systems).
Key specifications for PB52057-2: Head Height: 0.046 INCHES NOMINAL IN; Fastener Length: 0.218 INCHES NOMINAL IN; Screw Material Document and Classification: AMS 4610 ASSN STD SINGLE MATERIAL RESPONSE; Thread Length: 0.168 INCHES MINIMUM 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.