The Screw,tapping, cataloged under National Stock Number 5305-01-288-8320, 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 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-288-8320 |
| Primary Part Number | 90087A145 |
| Item Name | Screw,tapping |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Head Height | 0.099 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN |
| Fastener Length | 0.312 INCHES NOMINAL IN |
| Nonmachine Thread Style | WIDE FLUTE (TYPE H OR BT) |
| Head Style | ROUND |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Test Data Document | 24617-162847 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) |
| Material | STEEL OVERALL |
| Head Diameter | 0.264 INCHES MINIMUM AND 0.285 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 |
|---|---|
| 90087A145 PRIMARY | Mcmaster-Carr Supply Co (USA) |
| Reference | Meaning |
|---|---|
| 162847 | 5/9 Secondary reference General Motors Corp |
| 163137 | 5/9 Secondary reference General Motors Corp |
NSN 5305-01-288-8320 is a Screw,tapping, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-288-8320 has 1 manufacturer part number on file: 90087A145 (Mcmaster-Carr Supply Co).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-294-8444. Verify interchangeability with system specifications before substitution.
Key specifications for 90087A145: Head Height: 0.099 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN; Fastener Length: 0.312 INCHES NOMINAL IN; Nonmachine Thread Style: WIDE FLUTE (TYPE H OR BT); Head Style: ROUND. 8 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.