The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-693-2903, 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 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-693-2903 |
| Primary Part Number | 91290A099 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Width Across Flats | 2.020 MILLIMETERS MINIMUM AND 2.045 MILLIMETERS MAXIMUM MM |
| Head Height | 2.36 MILLIMETERS MINIMUM AND 2.50 MILLIMETERS MAXIMUM MM |
| Hardness Rating | 39.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 2.5 MILLIMETERS MM |
| Thread Direction | RIGHT-HAND |
| Thread Class | 3B |
| Material | STEEL COMP 316 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Handle Diameter | 2.36 MILLIMETERS MINIMUM AND 2.50 MILLIMETERS MAXIMUM MM |
| Head Diameter | 4.32 MILLIMETERS MINIMUM AND 4.68 MILLIMETERS MAXIMUM 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 |
|---|---|
| 91290A099 PRIMARY | Mcmaster-Carr Supply Co (USA) |
| 340-M2504-61-0050 PRIMARY | Infastech Decorah Llc Dba Camcar Decorah Operations Div Decorah Operations (USA) |
| Reference | Meaning |
|---|---|
| 91290A099 | 3/9 Design control — primary reference Infastech Decorah Llc Dba Camcar Decorah Operations Div Decorah Operations |
NSN 5305-01-693-2903 is a Screw,cap,socket Head, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-693-2903 has 2 manufacturer part numbers on file: 91290A099 (Mcmaster-Carr Supply Co), 340-M2504-61-0050 (Infastech Decorah Llc Dba Camcar Decorah Operations Div Decorah Operations).
Key specifications for 91290A099: Width Across Flats: 2.020 MILLIMETERS MINIMUM AND 2.045 MILLIMETERS MAXIMUM MM; Head Height: 2.36 MILLIMETERS MINIMUM AND 2.50 MILLIMETERS MAXIMUM MM; Hardness Rating: 39.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM OVERALL; Nominal Thread Diameter: 2.5 MILLIMETERS MM. 10 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.