The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-623-6111, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-623-6111 |
| Primary Part Number | 91294A214 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Width Across Flats | 3.0 MILLIMETERS NOMINAL MM |
| Fastener Length | 17.2 INCHES NOMINAL IN |
| Thread Pitch in Millimeters | 0.8 |
| Thread Length | 20.0 INCHES NOMINAL IN |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM OVERALL |
| Nominal Thread Diameter | 5.0 MILLIMETERS MM |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Minimum Tensile Strength | 142000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Countersink Angle | 90.0 DEGREES NOMINAL |
| Material | STEEL OVERALL |
| Thread Series Designator | M |
| Head Diameter | 10.0 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 91294A214 PRIMARY | Mcmaster-Carr Supply Co (USA) |
| ISO 10642-M5X20-8.8-A2A | International Organization for Standardization (iso) (CHE) |
| Reference | Meaning |
|---|---|
| ISO 10642 | 5/1 Secondary reference International Organization for Standardization (iso) |
NSN 5305-01-623-6111 is a Screw,cap,socket Head, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-623-6111 has 2 manufacturer part numbers on file: 91294A214 (Mcmaster-Carr Supply Co), ISO 10642-M5X20-8.8-A2A (International Organization for Standardization (iso)).
1 possible match (shared part number, not a government interchangeability claim): 5305-01-733-4576. Verify interchangeability with system specifications before substitution.
Key specifications for 91294A214: Width Across Flats: 3.0 MILLIMETERS NOMINAL MM; Fastener Length: 17.2 INCHES NOMINAL IN; Thread Pitch in Millimeters: 0.8; Thread Length: 20.0 INCHES NOMINAL 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.