The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-541-8550, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Drs Training & Control Systems, Llc Dba Leonardo Drs Training & Control Systems, Llc Div Range, Control and Unmanned Systems. Government technical data includes 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-541-8550 |
| Primary Part Number | 98174522-1 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Drs Training & Control Systems, Llc Dba Leonardo Drs Training & Control Systems, Llc Div Range, Control and Unmanned Systems |
| Status | ACTIVE |
| Head Height | 0.183 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Fastener Length | 0.399 INCHES MINIMUM AND 0.415 INCHES MAXIMUM IN |
| Thread Length | 0.407 INCHES NOMINAL IN |
| Spline Major Diameter | 0.221 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | SIX SPLINE |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.593 INCHES MINIMUM AND 0.600 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 |
|---|---|
| MSA3001-5-6 | M.s. Aerospace Inc. Dba Ms Aerospace Inc (USA) |
| 98174522-1 PRIMARY | Drs Training & Control Systems, Llc Dba Leonardo Drs Training & Control Systems, Llc Div Range, Control and Unmanned Systems (USA) |
NSN 5305-01-541-8550 is a Screw,cap,socket Head, manufactured by Drs Training & Control Systems, Llc Dba Leonardo Drs Training & Control Systems, Llc Div Range, Control and Unmanned Systems, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-541-8550 has 2 manufacturer part numbers on file: MSA3001-5-6 (M.s. Aerospace Inc. Dba Ms Aerospace Inc), 98174522-1 (Drs Training & Control Systems, Llc Dba Leonardo Drs Training & Control Systems, Llc Div Range, Control and Unmanned Systems).
Key specifications for 98174522-1: Head Height: 0.183 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN; Fastener Length: 0.399 INCHES MINIMUM AND 0.415 INCHES MAXIMUM IN; Thread Length: 0.407 INCHES NOMINAL IN; Spline Major Diameter: 0.221 INCHES NOMINAL IN. 13 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.