The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-161-9263, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is L3harris Technologies, Inc Div Space & Airborne Systems. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-161-9263 |
| Primary Part Number | GS21-301RC8X1-2 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | L3harris Technologies, Inc Div Space & Airborne Systems |
| Status | ACTIVE |
| Fastener Length | 0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | GPS 10-030 OPER T21 FSCM 24930 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.335 INCHES MINIMUM AND 0.428 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 303 OR STEEL COMP 430 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.285 INCHES MINIMUM AND 0.332 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 |
|---|---|
| GS21-301RC8X1-2 PRIMARY | L3harris Technologies, Inc Div Space & Airborne Systems (USA) |
NSN 5305-00-161-9263 is a Screw,cap,socket Head, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-161-9263 has 1 manufacturer part number on file: GS21-301RC8X1-2 (L3harris Technologies, Inc Div Space & Airborne Systems).
Key specifications for GS21-301RC8X1-2: Fastener Length: 0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN; Surface Treatment Document and Classification: GPS 10-030 OPER T21 FSCM 24930 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.335 INCHES MINIMUM AND 0.428 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.164 INCHES 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.