The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-021-4005, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Kovatch Corp.. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-021-4005 |
| Primary Part Number | K-500-CH-0792 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Kovatch Corp. |
| Status | ACTIVE |
| Head Height | 0.188 INCHES NOMINAL IN |
| Fastener Length | 1.250 INCHES NOMINAL IN |
| Thread Length | 0.750 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.438 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 20704698 | Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales (AUS) |
| 5000810793 | Arquus (FRA) |
| K-500-CH-0792 PRIMARY | Kovatch Corp. (USA) |
| 214005 | Army Weapons Command Attn Amswe-Ree-S (USA) |
| Reference | Meaning |
|---|---|
| 214005 | 5/9 Secondary reference General Motors Corp |
| 1AX147 | 5/9 Secondary reference Mack Trucks Inc Parts Opn |
| 1AX147 | 5/9 Secondary reference Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales |
| 214005 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| CC4X20 | 5/9 Secondary reference Kaitlin Corp |
| 1AX 147 | 3/2 Design control — primary reference U.S. Government activity |
| 102128 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-00-021-4005 is a Screw,cap,hexagon Head, manufactured by Kovatch Corp., classified under FSC 5305, Screws. Status: active.
NSN 5305-00-021-4005 has 4 manufacturer part numbers on file: 20704698 (Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales), 5000810793 (Arquus), K-500-CH-0792 (Kovatch Corp.), 214005 (Army Weapons Command Attn Amswe-Ree-S).
4 possible matches (shared part number, not a government interchangeability claim): 5930-00-437-8393, 6625-01-231-2391, 4720-01-448-6894. Verify interchangeability with system specifications before substitution.
Key specifications for K-500-CH-0792: Head Height: 0.188 INCHES NOMINAL IN; Fastener Length: 1.250 INCHES NOMINAL IN; Thread Length: 0.750 INCHES MINIMUM IN; Nominal Thread Diameter: 0.250 INCHES IN. 12 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.