The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-616-6912, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Nd Industries Inc Div Nd Industries, Inc. - Michigan Division. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5305-00-616-6912 |
| Primary Part Number | NK503-10-10 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Nd Industries Inc Div Nd Industries, Inc. - Michigan Division |
| Status | ACTIVE |
| Head Height | 0.123 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Fastener Length | 0.625 INCHES NOMINAL IN |
| Thread Length | 0.562 INCHES MINIMUM IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | 6050 MIL SPEC 1ST MATERIAL RESPONSE OR 8695 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FILLISTER |
| Thread Direction | RIGHT-HAND |
| Locking Feature | PELLET THREADS |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | SLOT |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.292 INCHES MINIMUM AND 0.313 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 |
|---|---|
| NK503-10-10 PRIMARY | Nd Industries Inc Div Nd Industries, Inc. - Michigan Division (USA) |
| NK503-10-10 | Nylok Llc (USA) |
| Reference | Meaning |
|---|---|
| NK503-10-10 | C/1 Advisory reference — outside the item-of-supply concept Nylok Fastener Corp |
NSN 5305-00-616-6912 is a Screw,cap,socket Head, manufactured by Nd Industries Inc Div Nd Industries, Inc. - Michigan Division, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-616-6912 has 2 manufacturer part numbers on file: NK503-10-10 (Nd Industries Inc Div Nd Industries, Inc. - Michigan Division), NK503-10-10 (Nylok Llc).
1 possible match (shared part number, not a government interchangeability claim): 5305-00-720-8661. Verify interchangeability with system specifications before substitution.
Key specifications for NK503-10-10: Head Height: 0.123 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN; Fastener Length: 0.625 INCHES NOMINAL IN; Thread Length: 0.562 INCHES MINIMUM IN; Hardness Rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL. 17 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.