The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-902-1618, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Ge Aviation Systems 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-902-1618 |
| Primary Part Number | 33AF1121-02-05 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Ge Aviation Systems Llc |
| Status | ACTIVE |
| Width Across Flats | 0.064 INCHES MAXIMUM IN |
| Head Height | 0.086 INCHES MAXIMUM IN |
| Fastener Length | 0.312 INCHES NOMINAL IN |
| Thread Length | 0.312 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.086 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 56 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.136 INCHES MINIMUM AND 0.140 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 |
|---|---|
| 33AF1121-02-05 PRIMARY | Ge Aviation Systems Llc (USA) |
| Reference | Meaning |
|---|---|
| 5305PL1567759 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5305-00-902-1618 is a Screw,cap,socket Head, manufactured by Ge Aviation Systems Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-902-1618 has 1 manufacturer part number on file: 33AF1121-02-05 (Ge Aviation Systems Llc).
Key specifications for 33AF1121-02-05: Width Across Flats: 0.064 INCHES MAXIMUM IN; Head Height: 0.086 INCHES MAXIMUM IN; Fastener Length: 0.312 INCHES NOMINAL IN; Thread Length: 0.312 INCHES MAXIMUM 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.