The Screw,shoulder, cataloged under National Stock Number 5305-01-221-9111, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-221-9111 |
| Primary Part Number | FBS7500-2-10-E-5-5 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Head Height | 0.505 INCHES MINIMUM AND 0.535 INCHES MAXIMUM IN |
| Fastener Length | 0.836 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.194 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 140000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | CROSS RECESS TYPE II |
| Material | IRON ALLOY 660 OVERALL |
| Head Diameter | 0.436 INCHES MINIMUM AND 0.466 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 |
|---|---|
| FBS7500-2-10-E-5-5 PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| 5810304P2 | 1/2 Source control — Government-approved source U.S. Government activity |
| 7500-2-10-E-5 5 | 5/9 Secondary reference Trw Inc Hand Tools Div Trw Industrial Products Group |
NSN 5305-01-221-9111 is a Screw,shoulder, manufactured by Huck International, Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-221-9111 has 1 manufacturer part number on file: FBS7500-2-10-E-5-5 (Huck International, Inc).
Key specifications for FBS7500-2-10-E-5-5: Head Height: 0.505 INCHES MINIMUM AND 0.535 INCHES MAXIMUM IN; Fastener Length: 0.836 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.194 INCHES NOMINAL 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.