The Screw,machine, cataloged under National Stock Number 5305-01-669-2187, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Us Jack Co. Government technical data includes 1 specification, 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. 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 | 5305-01-669-2187 |
| Primary Part Number | 56155 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Us Jack Co |
| Status | ACTIVE |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 56155 PRIMARY | Us Jack Co (USA) |
NSN 5305-01-669-2187 is a Screw,machine, manufactured by Us Jack Co, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-669-2187 has 1 manufacturer part number on file: 56155 (Us Jack Co).
1 possible match (shared part number, not a government interchangeability claim): 8465-01-675-2556. Verify interchangeability with system specifications before substitution.
Key specifications for 56155: Special Features: MATERIAL: ALLOY STEEL AISI 384 DR 18.8; Part Name Assigned by Controlling Agency: SOCKET HEAD CAP SCREW; Thread Series Designator: UNF. 1 specification is 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.