The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-352-8882, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Richard Manno & Company Inc.. Government technical data includes 15 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-352-8882 |
| Primary Part Number | 221B1580P0001 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Richard Manno & Company Inc. |
| Status | ACTIVE |
| Head Height | 0.120 INCHES NOMINAL IN |
| Fastener Length | 0.368 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.297 INCHES NOMINAL IN |
| Material Document and Classification | AMS6300 ASSN STD 1ST MATERIAL RESPONSE OR IL-S-6050 FED STD 10TH MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEXAGON COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 4037 OR STEEL COMP 8630 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| 221B1580P0001 PRIMARY | Richard Manno & Company Inc. (USA) |
| Reference | Meaning |
|---|---|
| 221B1580P1 | 5/9 Secondary reference U.S. Government activity |
| 221B1580P0001 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5305-01-352-8882 is a Screw,cap,hexagon Head, manufactured by Richard Manno & Company Inc., classified under FSC 5305, Screws. Status: active.
NSN 5305-01-352-8882 has 1 manufacturer part number on file: 221B1580P0001 (Richard Manno & Company Inc.).
Key specifications for 221B1580P0001: Head Height: 0.120 INCHES NOMINAL IN; Fastener Length: 0.368 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.297 INCHES NOMINAL IN. 15 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.