The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-644-0806, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Infastech Decorah Llc Dba Camcar Decorah Operations Div Decorah Operations. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-644-0806 |
| Primary Part Number | 91251A589 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Infastech Decorah Llc Dba Camcar Decorah Operations Div Decorah Operations |
| Status | ACTIVE |
| Fastener Length | 1.750 INCHES NOMINAL IN |
| Thread Length | 1.125 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Color | BLACK OVERALL |
| Surface Treatment | OXIDE OVERALL |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 91251A589 PRIMARY | Infastech Decorah Llc Dba Camcar Decorah Operations Div Decorah Operations (USA) |
| 3392AS1906 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 91251A589 | Mcmaster-Carr Supply Co (USA) |
NSN 5305-01-644-0806 is a Screw,cap,socket Head, manufactured by Infastech Decorah Llc Dba Camcar Decorah Operations Div Decorah Operations, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-644-0806 has 3 manufacturer part numbers on file: 91251A589 (Infastech Decorah Llc Dba Camcar Decorah Operations Div Decorah Operations), 3392AS1906 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 91251A589 (Mcmaster-Carr Supply Co).
Key specifications for 91251A589: Fastener Length: 1.750 INCHES NOMINAL IN; Thread Length: 1.125 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND; Color: BLACK OVERALL. 6 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.